402152565 has 16 divisors (see below), whose sum is σ = 653993856. Its totient is φ = 210964800.

The previous prime is 402152551. The next prime is 402152567. The reversal of 402152565 is 565251204.

It is not a de Polignac number, because 402152565 - 2¹¹ = 402150517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402152567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218841 + ... + 220670.

It is an arithmetic number, because the mean of its divisors is an integer number (40874616).

Almost surely, 2^402152565 is an apocalyptic number.

It is an amenable number.

402152565 is a deficient number, since it is larger than the sum of its proper divisors (251841291).

402152565 is a wasteful number, since it uses less digits than its factorization.

402152565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439580.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 402152565 is about 20053.7419201505. The cubic root of 402152565 is about 738.1256221551.

The spelling of 402152565 in words is "four hundred two million, one hundred fifty-two thousand, five hundred sixty-five".