32249664 has 70 divisors (see below), whose sum is σ = 95613474. Its totient is φ = 10748160.

The previous prime is 32249639. The next prime is 32249671. The reversal of 32249664 is 46694223.

It can be written as a sum of positive squares in only one way, i.e., 19289664 + 12960000 = 4392^2 + 3600^2 .

It is a super-2 number, since 2×32249664² = 2080081656225792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2074 + ... + 8294.

Almost surely, 2^32249664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32249664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47806737).

32249664 is an abundant number, since it is smaller than the sum of its proper divisors (63363810).

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

32249664 is an equidigital number, since it uses as much as digits as its factorization.

32249664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245 (or 6226 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 32249664 is about 5678.8787625728. The cubic root of 32249664 is about 318.3037325863.

The spelling of 32249664 in words is "thirty-two million, two hundred forty-nine thousand, six hundred sixty-four".