2421003840 has 112 divisors (see below), whose sum is σ = 7850380032. Its totient is φ = 631853056.

The previous prime is 2421003833. The next prime is 2421003911. The reversal of 2421003840 is 483001242.

It is a super-2 number, since 2×2421003840² = 11722519186589491200, 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 2421003840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18292 + ... + 71948.

Almost surely, 2^2421003840 is an apocalyptic number.

2421003840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421003840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3925190016).

2421003840 is an abundant number, since it is smaller than the sum of its proper divisors (5429376192).

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

2421003840 is a wasteful number, since it uses less digits than its factorization.

2421003840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53724 (or 53714 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2421003840 is about 49203.6974220434. The cubic root of 2421003840 is about 1342.7603010203.

The spelling of 2421003840 in words is "two billion, four hundred twenty-one million, three thousand, eight hundred forty".