32669440 has 36 divisors (see below), whose sum is σ = 78256584. Its totient is φ = 13067264.

The previous prime is 32669419. The next prime is 32669447. The reversal of 32669440 is 4496623.

It is a junction number, because it is equal to n+sod(n) for n = 32669396 and 32669405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32669447) 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, 11482 + ... + 14041.

It is an arithmetic number, because the mean of its divisors is an integer number (2173794).

Almost surely, 2^32669440 is an apocalyptic number.

It is an amenable number.

32669440 is an abundant number, since it is smaller than the sum of its proper divisors (45587144).

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

32669440 is an equidigital number, since it uses as much as digits as its factorization.

32669440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25544 (or 25530 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 32669440 is about 5715.7186774718. The cubic root of 32669440 is about 319.6788444592.

The spelling of 32669440 in words is "thirty-two million, six hundred sixty-nine thousand, four hundred forty".