690690192 has 40 divisors (see below), whose sum is σ = 1822252416. Its totient is φ = 225330816.

The previous prime is 690690173. The next prime is 690690193. The reversal of 690690192 is 291096096.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (690690193) 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 in 7 ways as a sum of consecutive naturals, for example, 150823 + ... + 155334.

Almost surely, 2^690690192 is an apocalyptic number.

It is an amenable number.

690690192 is an abundant number, since it is smaller than the sum of its proper divisors (1131562224).

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

690690192 is a wasteful number, since it uses less digits than its factorization.

690690192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306215 (or 306209 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 690690192 is about 26280.9853696546. The cubic root of 690690192 is about 883.9501278827.

The spelling of 690690192 in words is "six hundred ninety million, six hundred ninety thousand, one hundred ninety-two".