1604648874 has 16 divisors (see below), whose sum is σ = 3214540512. Its totient is φ = 534009168.

The previous prime is 1604648867. The next prime is 1604648879. The reversal of 1604648874 is 4788464061.

It is not an unprimeable number, because it can be changed into a prime (1604648879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214464 + ... + 221819.

It is an arithmetic number, because the mean of its divisors is an integer number (200908782).

Almost surely, 2^1604648874 is an apocalyptic number.

1604648874 is an abundant number, since it is smaller than the sum of its proper divisors (1609891638).

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

1604648874 is a wasteful number, since it uses less digits than its factorization.

1604648874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436901.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 1604648874 is about 40058.0687752168. The cubic root of 1604648874 is about 1170.7387824386.

The spelling of 1604648874 in words is "one billion, six hundred four million, six hundred forty-eight thousand, eight hundred seventy-four".