290700072 has 48 divisors (see below), whose sum is σ = 847877940. Its totient is φ = 89445888.

The previous prime is 290700049. The next prime is 290700107. The reversal of 290700072 is 270007092.

It can be written as a sum of positive squares in 2 ways, for example, as 290566116 + 133956 = 17046^2 + 366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154353 + ... + 156224.

Almost surely, 2^290700072 is an apocalyptic number.

It is an amenable number.

290700072 is an abundant number, since it is smaller than the sum of its proper divisors (557177868).

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

290700072 is a wasteful number, since it uses less digits than its factorization.

290700072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310602 (or 310595 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 290700072 is about 17049.9287975053. The cubic root of 290700072 is about 662.4427933041.

The spelling of 290700072 in words is "two hundred ninety million, seven hundred thousand, seventy-two".