1604861180 has 36 divisors (see below), whose sum is σ = 3649405032. Its totient is φ = 592562880.

The previous prime is 1604861177. The next prime is 1604861213. The reversal of 1604861180 is 811684061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1604861180.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234026 + ... + 240785.

It is an arithmetic number, because the mean of its divisors is an integer number (101372362).

Almost surely, 2^1604861180 is an apocalyptic number.

1604861180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1604861180 is an abundant number, since it is smaller than the sum of its proper divisors (2044543852).

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

1604861180 is a wasteful number, since it uses less digits than its factorization.

1604861180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474846 (or 474831 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1604861180 is about 40060.7186655457. The cubic root of 1604861180 is about 1170.7904124059.

The spelling of 1604861180 in words is "one billion, six hundred four million, eight hundred sixty-one thousand, one hundred eighty".