290253564 has 48 divisors (see below), whose sum is σ = 760989600. Its totient is φ = 95660928.

The previous prime is 290253541. The next prime is 290253577. The reversal of 290253564 is 465352092.

290253564 is a `hidden beast` number, since 2 + 90 + 2 + 5 + 3 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5487 + ... + 24710.

It is an arithmetic number, because the mean of its divisors is an integer number (15853950).

Almost surely, 2^290253564 is an apocalyptic number.

It is an amenable number.

290253564 is an abundant number, since it is smaller than the sum of its proper divisors (470736036).

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

290253564 is a wasteful number, since it uses less digits than its factorization.

290253564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30299 (or 30291 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 290253564 is about 17036.8296346474. The cubic root of 290253564 is about 662.1034543490.

The spelling of 290253564 in words is "two hundred ninety million, two hundred fifty-three thousand, five hundred sixty-four".