18125432 has 32 divisors (see below), whose sum is σ = 36775200. Its totient is φ = 8325504.

The previous prime is 18125431. The next prime is 18125467. The reversal of 18125432 is 23452181.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18125431) 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, 41069 + ... + 41507.

It is an arithmetic number, because the mean of its divisors is an integer number (1149225).

Almost surely, 2^18125432 is an apocalyptic number.

It is an amenable number.

18125432 is an abundant number, since it is smaller than the sum of its proper divisors (18649768).

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

18125432 is a wasteful number, since it uses less digits than its factorization.

18125432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 851 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 18125432 is about 4257.3973270063. The cubic root of 18125432 is about 262.6814805506.

The spelling of 18125432 in words is "eighteen million, one hundred twenty-five thousand, four hundred thirty-two".