402536 has 16 divisors (see below), whose sum is σ = 767040. Its totient is φ = 198000.

The previous prime is 402529. The next prime is 402541. The reversal of 402536 is 635204.

402536 is nontrivially palindromic in base 3.

402536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (47940).

2⁴⁰²⁵³⁶ is an apocalyptic number.

It is an amenable number.

402536 is a deficient number, since it is larger than the sum of its proper divisors (364504).

402536 is a wasteful number, since it uses less digits than its factorization.

402536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 402536 is about 634.4572483627. The cubic root of 402536 is about 73.8360137875.

The spelling of 402536 in words is "four hundred two thousand, five hundred thirty-six".