18808074 has 12 divisors (see below), whose sum is σ = 40750866. Its totient is φ = 6269352.

The previous prime is 18808073. The next prime is 18808091. The reversal of 18808074 is 47080881.

18808074 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in only one way, i.e., 18429849 + 378225 = 4293^2 + 615^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18808073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522429 + ... + 522464.

Almost surely, 2^18808074 is an apocalyptic number.

18808074 is an abundant number, since it is smaller than the sum of its proper divisors (21942792).

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

18808074 is a wasteful number, since it uses less digits than its factorization.

18808074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044901 (or 1044898 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 18808074 is about 4336.8276424133. The cubic root of 18808074 is about 265.9386388698.

The spelling of 18808074 in words is "eighteen million, eight hundred eight thousand, seventy-four".