32649980 has 96 divisors (see below), whose sum is σ = 80559360. Its totient is φ = 10990080.

The previous prime is 32649931. The next prime is 32649983. The reversal of 32649980 is 8994623.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32649983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305087 + ... + 305193.

It is an arithmetic number, because the mean of its divisors is an integer number (839160).

Almost surely, 2^32649980 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 32649980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40279680).

32649980 is an abundant number, since it is smaller than the sum of its proper divisors (47909380).

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

32649980 is a wasteful number, since it uses less digits than its factorization.

32649980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 32649980 is about 5714.0161007824. The cubic root of 32649980 is about 319.6153581560.

The spelling of 32649980 in words is "thirty-two million, six hundred forty-nine thousand, nine hundred eighty".