18256452 has 12 divisors (see below), whose sum is σ = 42598416. Its totient is φ = 6085480.

The previous prime is 18256451. The next prime is 18256463. The reversal of 18256452 is 25465281.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18256451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760674 + ... + 760697.

It is an arithmetic number, because the mean of its divisors is an integer number (3549868).

Almost surely, 2^18256452 is an apocalyptic number.

18256452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18256452 is an abundant number, since it is smaller than the sum of its proper divisors (24341964).

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

18256452 is a wasteful number, since it uses less digits than its factorization.

18256452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521378 (or 1521376 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 18256452 is about 4272.7569554095. The cubic root of 18256452 is about 263.3128941390.

The spelling of 18256452 in words is "eighteen million, two hundred fifty-six thousand, four hundred fifty-two".