18974265 has 32 divisors (see below), whose sum is σ = 32037120. Its totient is φ = 9574656.

The previous prime is 18974257. The next prime is 18974269. The reversal of 18974265 is 56247981.

It is not a de Polignac number, because 18974265 - 2³ = 18974257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18974269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22644 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (1001160).

Almost surely, 2^18974265 is an apocalyptic number.

18974265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18974265 is a deficient number, since it is larger than the sum of its proper divisors (13062855).

18974265 is a wasteful number, since it uses less digits than its factorization.

18974265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 120960, while the sum is 42.

The square root of 18974265 is about 4355.9459363036. The cubic root of 18974265 is about 266.7196344436.

The spelling of 18974265 in words is "eighteen million, nine hundred seventy-four thousand, two hundred sixty-five".