19800964 has 12 divisors (see below), whose sum is σ = 36475600. Its totient is φ = 9379368.

The previous prime is 19800961. The next prime is 19801003. The reversal of 19800964 is 46900891.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19800961) 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, 130194 + ... + 130345.

Almost surely, 2^19800964 is an apocalyptic number.

It is an amenable number.

19800964 is a deficient number, since it is larger than the sum of its proper divisors (16674636).

19800964 is a wasteful number, since it uses less digits than its factorization.

19800964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260562 (or 260560 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 19800964 is about 4449.8274123835. The cubic root of 19800964 is about 270.5383133115.

The spelling of 19800964 in words is "nineteen million, eight hundred thousand, nine hundred sixty-four".