18922452 has 12 divisors (see below), whose sum is σ = 44152416. Its totient is φ = 6307480.

The previous prime is 18922433. The next prime is 18922483. The reversal of 18922452 is 25422981.

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

It is a congruent number.

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, 788424 + ... + 788447.

It is an arithmetic number, because the mean of its divisors is an integer number (3679368).

Almost surely, 2^18922452 is an apocalyptic number.

18922452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18922452 is an abundant number, since it is smaller than the sum of its proper divisors (25229964).

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

18922452 is a wasteful number, since it uses less digits than its factorization.

18922452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576878 (or 1576876 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 18922452 is about 4349.9944827551. The cubic root of 18922452 is about 266.4766361414.

The spelling of 18922452 in words is "eighteen million, nine hundred twenty-two thousand, four hundred fifty-two".