1904090860 has 48 divisors (see below), whose sum is σ = 4578013440. Its totient is φ = 651660480.

The previous prime is 1904090849. The next prime is 1904090861. The reversal of 1904090860 is 680904091.

It is not an unprimeable number, because it can be changed into a prime (1904090861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 68031 + ... + 91849.

It is an arithmetic number, because the mean of its divisors is an integer number (95375280).

Almost surely, 2^1904090860 is an apocalyptic number.

1904090860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1904090860 is an abundant number, since it is smaller than the sum of its proper divisors (2673922580).

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

1904090860 is a wasteful number, since it uses less digits than its factorization.

1904090860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24406 (or 24404 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1904090860 is about 43635.8895864402. The cubic root of 1904090860 is about 1239.4506020916.

The spelling of 1904090860 in words is "one billion, nine hundred four million, ninety thousand, eight hundred sixty".