2421209768 has 64 divisors (see below), whose sum is σ = 5009979600. Its totient is φ = 1091829760.

The previous prime is 2421209741. The next prime is 2421209783. The reversal of 2421209768 is 8679021242.

It can be written as a sum of positive squares in 8 ways, for example, as 2000057284 + 421152484 = 44722^2 + 20522^2 .

It is a super-2 number, since 2×2421209768² = 11724513481317227648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538088 + ... + 542568.

Almost surely, 2^2421209768 is an apocalyptic number.

It is an amenable number.

2421209768 is an abundant number, since it is smaller than the sum of its proper divisors (2588769832).

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

2421209768 is a wasteful number, since it uses less digits than its factorization.

2421209768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 2421209768 is about 49205.7899845130. The cubic root of 2421209768 is about 1342.7983711932.

The spelling of 2421209768 in words is "two billion, four hundred twenty-one million, two hundred nine thousand, seven hundred sixty-eight".