18814532 has 18 divisors (see below), whose sum is σ = 36191694. Its totient is φ = 8551840.

The previous prime is 18814513. The next prime is 18814571. The reversal of 18814532 is 23541881.

It can be written as a sum of positive squares in only one way, i.e., 18783556 + 30976 = 4334^2 + 176^2 .

It is a super-2 number, since 2×18814532² = 707973228758048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18953 + ... + 19920.

Almost surely, 2^18814532 is an apocalyptic number.

It is an amenable number.

18814532 is a deficient number, since it is larger than the sum of its proper divisors (17377162).

18814532 is a wasteful number, since it uses less digits than its factorization.

18814532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38899 (or 38886 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 18814532 is about 4337.5721319651. The cubic root of 18814532 is about 265.9690732318.

The spelling of 18814532 in words is "eighteen million, eight hundred fourteen thousand, five hundred thirty-two".