18920896 has 28 divisors (see below), whose sum is σ = 37739320. Its totient is φ = 9411840.

The previous prime is 18920879. The next prime is 18920897. The reversal of 18920896 is 69802981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18920897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14011 + ... + 15301.

Almost surely, 2^18920896 is an apocalyptic number.

18920896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18920896 is a deficient number, since it is larger than the sum of its proper divisors (18818424).

18920896 is a wasteful number, since it uses less digits than its factorization.

18920896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 18920896 is about 4349.8156282767. The cubic root of 18920896 is about 266.4693317848.

The spelling of 18920896 in words is "eighteen million, nine hundred twenty thousand, eight hundred ninety-six".