18119432 has 16 divisors (see below), whose sum is σ = 35145900. Its totient is φ = 8747200.

The previous prime is 18119411. The next prime is 18119441. The reversal of 18119432 is 23491181.

It can be written as a sum of positive squares in 2 ways, for example, as 17355556 + 763876 = 4166^2 + 874^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 18119395 and 18119404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38819 + ... + 39282.

Almost surely, 2^18119432 is an apocalyptic number.

It is an amenable number.

18119432 is a deficient number, since it is larger than the sum of its proper divisors (17026468).

18119432 is a wasteful number, since it uses less digits than its factorization.

18119432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78136 (or 78132 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 18119432 is about 4256.6926128157. The cubic root of 18119432 is about 262.6524924999.

The spelling of 18119432 in words is "eighteen million, one hundred nineteen thousand, four hundred thirty-two".