18415052 has 6 divisors (see below), whose sum is σ = 32226348. Its totient is φ = 9207524.

The previous prime is 18415031. The next prime is 18415069. The reversal of 18415052 is 25051481.

It is a super-2 number, since 2×18415052² = 678228280325408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2301878 + ... + 2301885.

It is an arithmetic number, because the mean of its divisors is an integer number (5371058).

Almost surely, 2^18415052 is an apocalyptic number.

It is an amenable number.

18415052 is a deficient number, since it is larger than the sum of its proper divisors (13811296).

18415052 is a wasteful number, since it uses less digits than its factorization.

18415052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603767 (or 4603765 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 18415052 is about 4291.2762670329. The cubic root of 18415052 is about 264.0731928982.

The spelling of 18415052 in words is "eighteen million, four hundred fifteen thousand, fifty-two".