18479936 has 28 divisors (see below), whose sum is σ = 36880800. Its totient is φ = 9187200.

The previous prime is 18479933. The next prime is 18479939. The reversal of 18479936 is 63997481.

It is an interprime number because it is at equal distance from previous prime (18479933) and next prime (18479939).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18479933) 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, 12011 + ... + 13461.

Almost surely, 2^18479936 is an apocalyptic number.

18479936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18479936 is a deficient number, since it is larger than the sum of its proper divisors (18400864).

18479936 is a wasteful number, since it uses less digits than its factorization.

18479936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1652 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 18479936 is about 4298.8296081608. The cubic root of 18479936 is about 264.3829764521.

The spelling of 18479936 in words is "eighteen million, four hundred seventy-nine thousand, nine hundred thirty-six".