18370152 has 40 divisors (see below), whose sum is σ = 51455250. Its totient is φ = 6123168.

The previous prime is 18370147. The next prime is 18370201. The reversal of 18370152 is 25107381.

It can be written as a sum of positive squares in only one way, i.e., 18198756 + 171396 = 4266^2 + 414^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13527 + ... + 14822.

Almost surely, 2^18370152 is an apocalyptic number.

18370152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18370152 is an abundant number, since it is smaller than the sum of its proper divisors (33085098).

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

18370152 is a wasteful number, since it uses less digits than its factorization.

18370152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28367 (or 28354 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 18370152 is about 4286.0415303634. The cubic root of 18370152 is about 263.8583951336.

The spelling of 18370152 in words is "eighteen million, three hundred seventy thousand, one hundred fifty-two".