1859920104 has 64 divisors (see below), whose sum is σ = 5497315200. Its totient is φ = 513080064.

The previous prime is 1859920091. The next prime is 1859920157. The reversal of 1859920104 is 4010299581.

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, 186007 + ... + 195750.

It is an arithmetic number, because the mean of its divisors is an integer number (85895550).

Almost surely, 2^1859920104 is an apocalyptic number.

1859920104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1859920104 is an abundant number, since it is smaller than the sum of its proper divisors (3637395096).

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

1859920104 is a wasteful number, since it uses less digits than its factorization.

1859920104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381802 (or 381798 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1859920104 is about 43126.7910236781. The cubic root of 1859920104 is about 1229.7913374637.

The spelling of 1859920104 in words is "one billion, eight hundred fifty-nine million, nine hundred twenty thousand, one hundred four".