2421545440 has 48 divisors (see below), whose sum is σ = 6022008720. Its totient is φ = 917637120.

The previous prime is 2421545359. The next prime is 2421545491. The reversal of 2421545440 is 445451242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395241 + ... + 401320.

It is an arithmetic number, because the mean of its divisors is an integer number (125458515).

Almost surely, 2^2421545440 is an apocalyptic number.

2421545440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421545440 is an abundant number, since it is smaller than the sum of its proper divisors (3600463280).

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

2421545440 is a wasteful number, since it uses less digits than its factorization.

2421545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796595 (or 796587 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 2421545440 is about 49209.2007657105. The cubic root of 2421545440 is about 1342.8604226784.

Adding to 2421545440 its reverse (445451242), we get a palindrome (2866996682).

The spelling of 2421545440 in words is "two billion, four hundred twenty-one million, five hundred forty-five thousand, four hundred forty".