16385972 has 6 divisors (see below), whose sum is σ = 28675458. Its totient is φ = 8192984.

The previous prime is 16385969. The next prime is 16386001. The reversal of 16385972 is 27958361.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 4177936 = 3494^2 + 2044^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2048243 + ... + 2048250.

It is an arithmetic number, because the mean of its divisors is an integer number (4779243).

Almost surely, 2^16385972 is an apocalyptic number.

It is an amenable number.

16385972 is a deficient number, since it is larger than the sum of its proper divisors (12289486).

16385972 is a wasteful number, since it uses less digits than its factorization.

16385972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096497 (or 4096495 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 16385972 is about 4047.9589918871. The cubic root of 16385972 is about 253.9943578634.

The spelling of 16385972 in words is "sixteen million, three hundred eighty-five thousand, nine hundred seventy-two".