18950964 has 24 divisors (see below), whose sum is σ = 45161088. Its totient is φ = 6182400.

The previous prime is 18950963. The next prime is 18950989. The reversal of 18950964 is 46905981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16237 + ... + 17364.

It is an arithmetic number, because the mean of its divisors is an integer number (1881712).

Almost surely, 2^18950964 is an apocalyptic number.

It is an amenable number.

18950964 is an abundant number, since it is smaller than the sum of its proper divisors (26210124).

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

18950964 is a wasteful number, since it uses less digits than its factorization.

18950964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33655 (or 33653 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 18950964 is about 4353.2704946971. The cubic root of 18950964 is about 266.6104096604.

The spelling of 18950964 in words is "eighteen million, nine hundred fifty thousand, nine hundred sixty-four".