18910952 has 16 divisors (see below), whose sum is σ = 35574660. Its totient is φ = 9424384.

The previous prime is 18910943. The next prime is 18910981. The reversal of 18910952 is 25901981.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 2540836 = 4046^2 + 1594^2 .

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, 1193 + ... + 6264.

Almost surely, 2^18910952 is an apocalyptic number.

It is an amenable number.

18910952 is a deficient number, since it is larger than the sum of its proper divisors (16663708).

18910952 is a wasteful number, since it uses less digits than its factorization.

18910952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 18910952 is about 4348.6724411020. The cubic root of 18910952 is about 266.4226420408.

The spelling of 18910952 in words is "eighteen million, nine hundred ten thousand, nine hundred fifty-two".