18012752 has 10 divisors (see below), whose sum is σ = 34899738. Its totient is φ = 9006368.

The previous prime is 18012737. The next prime is 18012763. The reversal of 18012752 is 25721081.

It can be written as a sum of positive squares in only one way, i.e., 14714896 + 3297856 = 3836^2 + 1816^2 .

It is a super-2 number, since 2×18012752² = 648918469227008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562883 + ... + 562914.

Almost surely, 2^18012752 is an apocalyptic number.

It is an amenable number.

18012752 is a deficient number, since it is larger than the sum of its proper divisors (16886986).

18012752 is a wasteful number, since it uses less digits than its factorization.

18012752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125805 (or 1125799 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 18012752 is about 4244.1432586566. The cubic root of 18012752 is about 262.1360131345.

The spelling of 18012752 in words is "eighteen million, twelve thousand, seven hundred fifty-two".