18201952 has 24 divisors (see below), whose sum is σ = 36073296. Its totient is φ = 9040512.

The previous prime is 18201941. The next prime is 18201959. The reversal of 18201952 is 25910281.

It is a super-2 number, since 2×18201952² = 662622113220608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18201952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201959) 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, 3213 + ... + 6835.

It is an arithmetic number, because the mean of its divisors is an integer number (1503054).

Almost surely, 2^18201952 is an apocalyptic number.

It is an amenable number.

18201952 is a deficient number, since it is larger than the sum of its proper divisors (17871344).

18201952 is a wasteful number, since it uses less digits than its factorization.

18201952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790 (or 3782 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 18201952 is about 4266.3745733351. The cubic root of 18201952 is about 263.0506150566.

The spelling of 18201952 in words is "eighteen million, two hundred one thousand, nine hundred fifty-two".