402616401 has 32 divisors (see below), whose sum is σ = 597214080. Its totient is φ = 239232000.

The previous prime is 402616397. The next prime is 402616421. The reversal of 402616401 is 104616204.

It is not a de Polignac number, because 402616401 - 2² = 402616397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402616421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376095 + ... + 377163.

It is an arithmetic number, because the mean of its divisors is an integer number (18662940).

Almost surely, 2^402616401 is an apocalyptic number.

It is an amenable number.

402616401 is a deficient number, since it is larger than the sum of its proper divisors (194597679).

402616401 is a wasteful number, since it uses less digits than its factorization.

402616401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 402616401 is about 20065.3034116108. The cubic root of 402616401 is about 738.4092936788.

The spelling of 402616401 in words is "four hundred two million, six hundred sixteen thousand, four hundred one".