18472190 has 32 divisors (see below), whose sum is σ = 36457344. Its totient is φ = 6683040.

The previous prime is 18472189. The next prime is 18472247. The reversal of 18472190 is 9127481.

It is a super-2 number, since 2×18472190² = 682443606792200, which contains 22 as substring.

It is a congruent number.

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, 33497 + ... + 34043.

It is an arithmetic number, because the mean of its divisors is an integer number (1139292).

Almost surely, 2^18472190 is an apocalyptic number.

18472190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18472190 is a deficient number, since it is larger than the sum of its proper divisors (17985154).

18472190 is a wasteful number, since it uses less digits than its factorization.

18472190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 18472190 is about 4297.9285708350. The cubic root of 18472190 is about 264.3460319387.

The spelling of 18472190 in words is "eighteen million, four hundred seventy-two thousand, one hundred ninety".