626944 has 36 divisors (see below), whose sum is σ = 1308160. Its totient is φ = 299520.

The previous prime is 626929. The next prime is 626947. The reversal of 626944 is 449626.

626944 = T₆₄₅ + T₆₄₆ + T₆₄₇.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7897 + ... + 7975.

2⁶²⁶⁹⁴⁴ is an apocalyptic number.

626944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

626944 is the 647-th centered triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654080).

626944 is an abundant number, since it is smaller than the sum of its proper divisors (681216).

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

626944 is an equidigital number, since it uses as much as digits as its factorization.

626944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 112 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 626944 is about 791.7979540262. The cubic root of 626944 is about 85.5873507381.

The spelling of 626944 in words is "six hundred twenty-six thousand, nine hundred forty-four".