32120664 has 16 divisors (see below), whose sum is σ = 80301720. Its totient is φ = 10706880.

The previous prime is 32120663. The next prime is 32120707. The reversal of 32120664 is 46602123.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1338361 = 32120664 / (3 + 2 + 1 + 2 + 0 + 6 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120663) 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, 669157 + ... + 669204.

Almost surely, 2^32120664 is an apocalyptic number.

It is an amenable number.

32120664 is an abundant number, since it is smaller than the sum of its proper divisors (48181056).

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

32120664 is a wasteful number, since it uses less digits than its factorization.

32120664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338370 (or 1338366 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 32120664 is about 5667.5095059470. The cubic root of 32120664 is about 317.8787560417.

Adding to 32120664 its reverse (46602123), we get a palindrome (78722787).

The spelling of 32120664 in words is "thirty-two million, one hundred twenty thousand, six hundred sixty-four".