2421025440 has 96 divisors (see below), whose sum is σ = 7832401920. Its totient is φ = 628153344.

The previous prime is 2421025433. The next prime is 2421025447. The reversal of 2421025440 is 445201242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2421025433) and next prime (2421025447).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2421025440² = 11722728362254387200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2421025440.

It is not an unprimeable number, because it can be changed into a prime (2421025447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50400 + ... + 85919.

It is an arithmetic number, because the mean of its divisors is an integer number (81587520).

Almost surely, 2^2421025440 is an apocalyptic number.

2421025440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421025440 is an abundant number, since it is smaller than the sum of its proper divisors (5411376480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421025440 is a wasteful number, since it uses less digits than its factorization.

2421025440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136374 (or 136366 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2421025440 is about 49203.9169172537. The cubic root of 2421025440 is about 1342.7642943413.

Adding to 2421025440 its reverse (445201242), we get a palindrome (2866226682).

The spelling of 2421025440 in words is "two billion, four hundred twenty-one million, twenty-five thousand, four hundred forty".