690028944 has 40 divisors (see below), whose sum is σ = 1944628512. Its totient is φ = 209099520.

The previous prime is 690028931. The next prime is 690028951. The reversal of 690028944 is 449820096.

It is a super-2 number, since 2×690028944² = 952279887115510272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 690028896 and 690028905.

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, 652909 + ... + 653964.

Almost surely, 2^690028944 is an apocalyptic number.

It is an amenable number.

690028944 is an abundant number, since it is smaller than the sum of its proper divisors (1254599568).

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

690028944 is a wasteful number, since it uses less digits than its factorization.

690028944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306895 (or 1306889 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 690028944 is about 26268.4020069741. The cubic root of 690028944 is about 883.6679478780.

The spelling of 690028944 in words is "six hundred ninety million, twenty-eight thousand, nine hundred forty-four".