32020164 has 48 divisors (see below), whose sum is σ = 90565440. Its totient is φ = 9702720.

The previous prime is 32020159. The next prime is 32020169. The reversal of 32020164 is 46102023.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (32020159) and next prime (32020169).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (32020169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12289 + ... + 14664.

It is an arithmetic number, because the mean of its divisors is an integer number (1886780).

Almost surely, 2^32020164 is an apocalyptic number.

It is an amenable number.

32020164 is an abundant number, since it is smaller than the sum of its proper divisors (58545276).

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

32020164 is a wasteful number, since it uses less digits than its factorization.

32020164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26977 (or 26969 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 32020164 is about 5658.6362314607. The cubic root of 32020164 is about 317.5468804646.

Adding to 32020164 its reverse (46102023), we get a palindrome (78122187).

The spelling of 32020164 in words is "thirty-two million, twenty thousand, one hundred sixty-four".