18770044 has 12 divisors (see below), whose sum is σ = 32985568. Its totient is φ = 9345600.

The previous prime is 18770041. The next prime is 18770051. The reversal of 18770044 is 44007781.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18769988 and 18770015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18770041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8772 + ... + 10699.

Almost surely, 2^18770044 is an apocalyptic number.

It is an amenable number.

18770044 is a deficient number, since it is larger than the sum of its proper divisors (14215524).

18770044 is a wasteful number, since it uses less digits than its factorization.

18770044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19716 (or 19714 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 18770044 is about 4332.4408824588. The cubic root of 18770044 is about 265.7592749307.

The spelling of 18770044 in words is "eighteen million, seven hundred seventy thousand, forty-four".