1804372872 has 16 divisors (see below), whose sum is σ = 4510932240. Its totient is φ = 601457616.

The previous prime is 1804372861. The next prime is 1804372879. The reversal of 1804372872 is 2782734081.

It is a super-2 number, since 2×1804372872² = 6511522922419056768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1804372879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37591078 + ... + 37591125.

It is an arithmetic number, because the mean of its divisors is an integer number (281933265).

Almost surely, 2^1804372872 is an apocalyptic number.

1804372872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1804372872 is an abundant number, since it is smaller than the sum of its proper divisors (2706559368).

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

1804372872 is a wasteful number, since it uses less digits than its factorization.

1804372872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75182212 (or 75182208 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 1804372872 is about 42477.9104005835. The cubic root of 1804372872 is about 1217.4246651170.

The spelling of 1804372872 in words is "one billion, eight hundred four million, three hundred seventy-two thousand, eight hundred seventy-two".