18063372 has 24 divisors (see below), whose sum is σ = 43981056. Its totient is φ = 5759248.

The previous prime is 18063361. The next prime is 18063379. The reversal of 18063372 is 27336081.

It is not an unprimeable number, because it can be changed into a prime (18063379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32448 + ... + 32999.

It is an arithmetic number, because the mean of its divisors is an integer number (1832544).

Almost surely, 2^18063372 is an apocalyptic number.

18063372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18063372 is an abundant number, since it is smaller than the sum of its proper divisors (25917684).

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

18063372 is a wasteful number, since it uses less digits than its factorization.

18063372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65477 (or 65475 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 18063372 is about 4250.1025869972. The cubic root of 18063372 is about 262.3813377504.

The spelling of 18063372 in words is "eighteen million, sixty-three thousand, three hundred seventy-two".