402562401 has 16 divisors (see below), whose sum is σ = 547801920. Its totient is φ = 262866240.

The previous prime is 402562357. The next prime is 402562409. The reversal of 402562401 is 104265204.

It is not a de Polignac number, because 402562401 - 2⁶ = 402562337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402562409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110946 + ... + 114516.

It is an arithmetic number, because the mean of its divisors is an integer number (34237620).

Almost surely, 2^402562401 is an apocalyptic number.

It is an amenable number.

402562401 is a deficient number, since it is larger than the sum of its proper divisors (145239519).

402562401 is a wasteful number, since it uses less digits than its factorization.

402562401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 402562401 is about 20063.9577601230. The cubic root of 402562401 is about 738.3762797193.

The spelling of 402562401 in words is "four hundred two million, five hundred sixty-two thousand, four hundred one".