690442072 has 16 divisors (see below), whose sum is σ = 1316521800. Its totient is φ = 339369600.

The previous prime is 690442019. The next prime is 690442073. The reversal of 690442072 is 270244096.

690442072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690442073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730929 + ... + 731872.

Almost surely, 2^690442072 is an apocalyptic number.

It is an amenable number.

690442072 is a deficient number, since it is larger than the sum of its proper divisors (626079728).

690442072 is a wasteful number, since it uses less digits than its factorization.

690442072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462866 (or 1462862 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 690442072 is about 26276.2644224783. The cubic root of 690442072 is about 883.8442666361.

The spelling of 690442072 in words is "six hundred ninety million, four hundred forty-two thousand, seventy-two".