2604866590 has 16 divisors (see below), whose sum is σ = 4690270080. Its totient is φ = 1041611040.

The previous prime is 2604866573. The next prime is 2604866609. The reversal of 2604866590 is 956684062.

It is a self number, because there is not a number n which added to its sum of digits gives 2604866590.

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, 8046 + ... + 72625.

It is an arithmetic number, because the mean of its divisors is an integer number (293141880).

Almost surely, 2^2604866590 is an apocalyptic number.

2604866590 is a deficient number, since it is larger than the sum of its proper divisors (2085403490).

2604866590 is a wasteful number, since it uses less digits than its factorization.

2604866590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83907.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 2604866590 is about 51037.8936673527. The cubic root of 2604866590 is about 1375.9262677811.

The spelling of 2604866590 in words is "two billion, six hundred four million, eight hundred sixty-six thousand, five hundred ninety".