402555616 has 12 divisors (see below), whose sum is σ = 792531432. Its totient is φ = 201277792.

The previous prime is 402555613. The next prime is 402555649. The reversal of 402555616 is 616555204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402555613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289900 + ... + 6289963.

It is an arithmetic number, because the mean of its divisors is an integer number (66044286).

Almost surely, 2^402555616 is an apocalyptic number.

It is an amenable number.

402555616 is a deficient number, since it is larger than the sum of its proper divisors (389975816).

402555616 is a wasteful number, since it uses less digits than its factorization.

402555616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579873 (or 12579865 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 402555616 is about 20063.7886751232. The cubic root of 402555616 is about 738.3721313677.

The spelling of 402555616 in words is "four hundred two million, five hundred fifty-five thousand, six hundred sixteen".