2290388164 has 9 divisors (see below), whose sum is σ = 4008346797. Its totient is φ = 1145146224.

The previous prime is 2290388147. The next prime is 2290388173. The reversal of 2290388164 is 4618830922.

The square root of 2290388164 is 47858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1580698564 + 709689600 = 39758^2 + 26640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2290388164.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 83752 + ... + 107680.

Almost surely, 2^2290388164 is an apocalyptic number.

2290388164 is the 47858-th square number.

It is an amenable number.

2290388164 is a deficient number, since it is larger than the sum of its proper divisors (1717958633).

2290388164 is an frugal number, since it uses more digits than its factorization.

2290388164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47862 (or 23931 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The cubic root of 2290388164 is about 1318.1647598101.

The spelling of 2290388164 in words is "two billion, two hundred ninety million, three hundred eighty-eight thousand, one hundred sixty-four".