18794420 has 24 divisors (see below), whose sum is σ = 41546400. Its totient is φ = 7121952.

The previous prime is 18794411. The next prime is 18794453. The reversal of 18794420 is 2449781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24350 + ... + 25109.

It is an arithmetic number, because the mean of its divisors is an integer number (1731100).

Almost surely, 2^18794420 is an apocalyptic number.

18794420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18794420 is an abundant number, since it is smaller than the sum of its proper divisors (22751980).

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

18794420 is a wasteful number, since it uses less digits than its factorization.

18794420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49487 (or 49485 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 18794420 is about 4335.2531644646. The cubic root of 18794420 is about 265.8742692588.

The spelling of 18794420 in words is "eighteen million, seven hundred ninety-four thousand, four hundred twenty".