626342394 has 32 divisors (see below), whose sum is σ = 1315520640. Its totient is φ = 198424512.

The previous prime is 626342357. The next prime is 626342419. The reversal of 626342394 is 493243626.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7212 + ... + 36120.

It is an arithmetic number, because the mean of its divisors is an integer number (41110020).

Almost surely, 2^626342394 is an apocalyptic number.

626342394 is an abundant number, since it is smaller than the sum of its proper divisors (689178246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

626342394 is a wasteful number, since it uses less digits than its factorization.

626342394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29094.

The product of its digits is 186624, while the sum is 39.

The square root of 626342394 is about 25026.8334792878. The cubic root of 626342394 is about 855.5996586686.

The spelling of 626342394 in words is "six hundred twenty-six million, three hundred forty-two thousand, three hundred ninety-four".