32164642 has 4 divisors (see below), whose sum is σ = 48246966. Its totient is φ = 16082320.

The previous prime is 32164631. The next prime is 32164651. The reversal of 32164642 is 24646123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24646123 = 1669 ⋅14767.

It can be written as a sum of positive squares in only one way, i.e., 30151081 + 2013561 = 5491^2 + 1419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32164642.

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, 8041159 + ... + 8041162.

Almost surely, 2^32164642 is an apocalyptic number.

32164642 is a deficient number, since it is larger than the sum of its proper divisors (16082324).

32164642 is a wasteful number, since it uses less digits than its factorization.

32164642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16082323.

The product of its digits is 6912, while the sum is 28.

The square root of 32164642 is about 5671.3880135290. The cubic root of 32164642 is about 318.0237644253.

The spelling of 32164642 in words is "thirty-two million, one hundred sixty-four thousand, six hundred forty-two".