180909964 has 12 divisors (see below), whose sum is σ = 316827000. Its totient is φ = 90387968.

The previous prime is 180909961. The next prime is 180909977. The reversal of 180909964 is 469909081.

180909964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (180909961) 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, 10414 + ... + 21685.

It is an arithmetic number, because the mean of its divisors is an integer number (26402250).

Almost surely, 2^180909964 is an apocalyptic number.

It is an amenable number.

180909964 is a deficient number, since it is larger than the sum of its proper divisors (135917036).

180909964 is a wasteful number, since it uses less digits than its factorization.

180909964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33512 (or 33510 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 180909964 is about 13450.2774692569. The cubic root of 180909964 is about 565.5714728464.

The spelling of 180909964 in words is "one hundred eighty million, nine hundred nine thousand, nine hundred sixty-four".