402926 has 8 divisors (see below), whose sum is σ = 625320. Its totient is φ = 194488.

The previous prime is 402923. The next prime is 402943. The reversal of 402926 is 629204.

402926 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×402926² = 324698722952, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416 + ... + 3531.

It is an arithmetic number, because the mean of its divisors is an integer number (78165).

2⁴⁰²⁹²⁶ is an apocalyptic number.

402926 is a deficient number, since it is larger than the sum of its proper divisors (222394).

402926 is a wasteful number, since it uses less digits than its factorization.

402926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 402926 is about 634.7645232683. The cubic root of 402926 is about 73.8598516146.

The spelling of 402926 in words is "four hundred two thousand, nine hundred twenty-six".