18674331 has 12 divisors (see below), whose sum is σ = 26962488. Its totient is φ = 11491584.

The previous prime is 18674329. The next prime is 18674353. The reversal of 18674331 is 13347681.

It is not a de Polignac number, because 18674331 - 2¹ = 18674329 is a prime.

It is a super-2 number, since 2×18674331² = 697461276595122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18674292 and 18674301.

It is not an unprimeable number, because it can be changed into a prime (18672331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17910 + ... + 18923.

It is an arithmetic number, because the mean of its divisors is an integer number (2246874).

Almost surely, 2^18674331 is an apocalyptic number.

18674331 is a deficient number, since it is larger than the sum of its proper divisors (8288157).

18674331 is a wasteful number, since it uses less digits than its factorization.

18674331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36862 (or 36849 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 18674331 is about 4321.3806821432. The cubic root of 18674331 is about 265.3067812977.

The spelling of 18674331 in words is "eighteen million, six hundred seventy-four thousand, three hundred thirty-one".