18052428 has 24 divisors (see below), whose sum is σ = 42498288. Its totient is φ = 5963776.

The previous prime is 18052427. The next prime is 18052469. The reversal of 18052428 is 82425081.

It is a junction number, because it is equal to n+sod(n) for n = 18052395 and 18052404.

It is not an unprimeable number, because it can be changed into a prime (18052421) 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, 5301 + ... + 8012.

It is an arithmetic number, because the mean of its divisors is an integer number (1770762).

Almost surely, 2^18052428 is an apocalyptic number.

It is an amenable number.

18052428 is an abundant number, since it is smaller than the sum of its proper divisors (24445860).

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

18052428 is a wasteful number, since it uses less digits than its factorization.

18052428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13433 (or 13431 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 18052428 is about 4248.8148935909. The cubic root of 18052428 is about 262.3283376522.

The spelling of 18052428 in words is "eighteen million, fifty-two thousand, four hundred twenty-eight".