80389632 has 80 divisors (see below), whose sum is σ = 216057600. Its totient is φ = 26560512.

The previous prime is 80389609. The next prime is 80389657. The reversal of 80389632 is 23698308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305533 + ... + 305795.

It is an arithmetic number, because the mean of its divisors is an integer number (2700720).

Almost surely, 2^80389632 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 80389632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108028800).

80389632 is an abundant number, since it is smaller than the sum of its proper divisors (135667968).

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

80389632 is a wasteful number, since it uses less digits than its factorization.

80389632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 80389632 is about 8966.0265446852. The cubic root of 80389632 is about 431.5853359857.

The spelling of 80389632 in words is "eighty million, three hundred eighty-nine thousand, six hundred thirty-two".