32138664 has 16 divisors (see below), whose sum is σ = 80346720. Its totient is φ = 10712880.

The previous prime is 32138663. The next prime is 32138677. The reversal of 32138664 is 46683123.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (32138663) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 669532 + ... + 669579.

It is an arithmetic number, because the mean of its divisors is an integer number (5021670).

Almost surely, 2^32138664 is an apocalyptic number.

It is an amenable number.

32138664 is an abundant number, since it is smaller than the sum of its proper divisors (48208056).

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

32138664 is a wasteful number, since it uses less digits than its factorization.

32138664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339120 (or 1339116 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 32138664 is about 5669.0972826368. The cubic root of 32138664 is about 317.9381233193.

The spelling of 32138664 in words is "thirty-two million, one hundred thirty-eight thousand, six hundred sixty-four".