2421621264 has 40 divisors (see below), whose sum is σ = 6264366912. Its totient is φ = 806108800.

The previous prime is 2421621259. The next prime is 2421621299. The reversal of 2421621264 is 4621261242.

It is a nude number because it is divisible by every one of its digits.

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, 1714 + ... + 69614.

Almost surely, 2^2421621264 is an apocalyptic number.

2421621264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2421621264 is an abundant number, since it is smaller than the sum of its proper divisors (3842745648).

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

2421621264 is a wasteful number, since it uses less digits than its factorization.

2421621264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68655 (or 68649 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 2421621264 is about 49209.9711847101. The cubic root of 2421621264 is about 1342.8744385192.

The spelling of 2421621264 in words is "two billion, four hundred twenty-one million, six hundred twenty-one thousand, two hundred sixty-four".