690519940 has 48 divisors (see below), whose sum is σ = 1674981504. Its totient is φ = 236326400.

The previous prime is 690519919. The next prime is 690519941. The reversal of 690519940 is 49915096.

It is not an unprimeable number, because it can be changed into a prime (690519941) 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, 88576 + ... + 96055.

It is an arithmetic number, because the mean of its divisors is an integer number (34895448).

Almost surely, 2^690519940 is an apocalyptic number.

It is an amenable number.

690519940 is an abundant number, since it is smaller than the sum of its proper divisors (984461564).

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

690519940 is a wasteful number, since it uses less digits than its factorization.

690519940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184668 (or 184666 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 690519940 is about 26277.7460981721. The cubic root of 690519940 is about 883.8774920149.

The spelling of 690519940 in words is "six hundred ninety million, five hundred nineteen thousand, nine hundred forty".