626969040 has 80 divisors (see below), whose sum is σ = 1948321728. Its totient is φ = 166786048.

The previous prime is 626969003. The next prime is 626969047. The reversal of 626969040 is 40969626.

626969040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 626968983 and 626969001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626969047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103372 + ... + 109268.

Almost surely, 2^626969040 is an apocalyptic number.

626969040 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 626969040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974160864).

626969040 is an abundant number, since it is smaller than the sum of its proper divisors (1321352688).

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

626969040 is a wasteful number, since it uses less digits than its factorization.

626969040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356 (or 6350 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 626969040 is about 25039.3498318147. The cubic root of 626969040 is about 855.8849016934.

The spelling of 626969040 in words is "six hundred twenty-six million, nine hundred sixty-nine thousand, forty".