690472022 has 16 divisors (see below), whose sum is σ = 1083776112. Its totient is φ = 329565600.

The previous prime is 690472019. The next prime is 690472031. The reversal of 690472022 is 220274096.

It is a super-2 number, since 2×690472022² = 953503226329536968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 690472022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84104 + ... + 91947.

It is an arithmetic number, because the mean of its divisors is an integer number (67736007).

Almost surely, 2^690472022 is an apocalyptic number.

690472022 is a deficient number, since it is larger than the sum of its proper divisors (393304090).

690472022 is a wasteful number, since it uses less digits than its factorization.

690472022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176143.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 690472022 is about 26276.8343222695. The cubic root of 690472022 is about 883.8570462518.

The spelling of 690472022 in words is "six hundred ninety million, four hundred seventy-two thousand, twenty-two".