402626 has 8 divisors (see below), whose sum is σ = 690240. Its totient is φ = 172548.

The previous prime is 402613. The next prime is 402631. The reversal of 402626 is 626204.

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

It is a junction number, because it is equal to n+sod(n) for n = 402598 and 402607.

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, 14366 + ... + 14393.

It is an arithmetic number, because the mean of its divisors is an integer number (86280).

2⁴⁰²⁶²⁶ is an apocalyptic number.

402626 is a deficient number, since it is larger than the sum of its proper divisors (287614).

402626 is a wasteful number, since it uses less digits than its factorization.

402626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28768.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402626 is about 634.5281711634. The cubic root of 402626 is about 73.8415161907.

The spelling of 402626 in words is "four hundred two thousand, six hundred twenty-six".