18305652 has 12 divisors (see below), whose sum is σ = 42713216. Its totient is φ = 6101880.

The previous prime is 18305633. The next prime is 18305657. The reversal of 18305652 is 25650381.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 (18305657) 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, 762724 + ... + 762747.

Almost surely, 2^18305652 is an apocalyptic number.

18305652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18305652 is an abundant number, since it is smaller than the sum of its proper divisors (24407564).

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

18305652 is a wasteful number, since it uses less digits than its factorization.

18305652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525478 (or 1525476 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 18305652 is about 4278.5104884761. The cubic root of 18305652 is about 263.5492192503.

The spelling of 18305652 in words is "eighteen million, three hundred five thousand, six hundred fifty-two".