626940 has 84 divisors (see below), whose sum is σ = 2019864. Its totient is φ = 163296.

The previous prime is 626929. The next prime is 626947. The reversal of 626940 is 49626.

626940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 9.

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 polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14559 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (24046).

2⁶²⁶⁹⁴⁰ is an apocalyptic number.

626940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009932).

626940 is an abundant number, since it is smaller than the sum of its proper divisors (1392924).

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

626940 is a wasteful number, since it uses less digits than its factorization.

626940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 626940 is about 791.7954281252. The cubic root of 626940 is about 85.5871687175.

626940 divided by its sum of digits (27) gives a triangular number (23220 = T₂₁₅).

The spelling of 626940 in words is "six hundred twenty-six thousand, nine hundred forty".