626942 has 4 divisors (see below), whose sum is σ = 940416. Its totient is φ = 313470.

The previous prime is 626929. The next prime is 626947. The reversal of 626942 is 249626.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626947) 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 as a sum of consecutive naturals, namely, 156734 + ... + 156737.

It is an arithmetic number, because the mean of its divisors is an integer number (235104).

2⁶²⁶⁹⁴² is an apocalyptic number.

626942 is a deficient number, since it is larger than the sum of its proper divisors (313474).

626942 is a wasteful number, since it uses less digits than its factorization.

626942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313473.

The product of its digits is 5184, while the sum is 29.

The square root of 626942 is about 791.7966910767. The cubic root of 626942 is about 85.5872597279.

The spelling of 626942 in words is "six hundred twenty-six thousand, nine hundred forty-two".