18920652 has 12 divisors (see below), whose sum is σ = 44148216. Its totient is φ = 6306880.

The previous prime is 18920641. The next prime is 18920663. The reversal of 18920652 is 25602981.

It is an interprime number because it is at equal distance from previous prime (18920641) and next prime (18920663).

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

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, 788349 + ... + 788372.

It is an arithmetic number, because the mean of its divisors is an integer number (3679018).

Almost surely, 2^18920652 is an apocalyptic number.

18920652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18920652 is an abundant number, since it is smaller than the sum of its proper divisors (25227564).

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

18920652 is a wasteful number, since it uses less digits than its factorization.

18920652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576728 (or 1576726 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 18920652 is about 4349.7875810205. The cubic root of 18920652 is about 266.4681863353.

The spelling of 18920652 in words is "eighteen million, nine hundred twenty thousand, six hundred fifty-two".