6402457960 has 32 divisors (see below), whose sum is σ = 14533023240. Its totient is φ = 2538317824.

The previous prime is 6402457933. The next prime is 6402457967. The reversal of 6402457960 is 697542046.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2811332484 + 3591125476 = 53022^2 + 59926^2 .

It is not an unprimeable number, because it can be changed into a prime (6402457967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703717 + ... + 712756.

Almost surely, 2^6402457960 is an apocalyptic number.

It is an amenable number.

6402457960 is an abundant number, since it is smaller than the sum of its proper divisors (8130565280).

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

6402457960 is a wasteful number, since it uses less digits than its factorization.

6402457960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416597 (or 1416593 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 6402457960 is about 80015.3607752911. The cubic root of 6402457960 is about 1856.8731871838.

The spelling of 6402457960 in words is "six billion, four hundred two million, four hundred fifty-seven thousand, nine hundred sixty".