18232464 has 40 divisors (see below), whose sum is σ = 48623872. Its totient is φ = 5880960.

The previous prime is 18232463. The next prime is 18232469. The reversal of 18232464 is 46423281.

It is a super-2 number, since 2×18232464² = 664845487022592, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18232463) 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, 4639 + ... + 7614.

Almost surely, 2^18232464 is an apocalyptic number.

It is an amenable number.

18232464 is an abundant number, since it is smaller than the sum of its proper divisors (30391408).

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

18232464 is a wasteful number, since it uses less digits than its factorization.

18232464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295 (or 12289 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 18232464 is about 4269.9489458306. The cubic root of 18232464 is about 263.1975172451.

The spelling of 18232464 in words is "eighteen million, two hundred thirty-two thousand, four hundred sixty-four".