80641392 has 60 divisors (see below), whose sum is σ = 225603864. Its totient is φ = 24810240.

The previous prime is 80641391. The next prime is 80641403. The reversal of 80641392 is 29314608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80641391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3142 + ... + 13082.

Almost surely, 2^80641392 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 80641392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112801932).

80641392 is an abundant number, since it is smaller than the sum of its proper divisors (144962472).

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

80641392 is a wasteful number, since it uses less digits than its factorization.

80641392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 80641392 is about 8980.0552336831. The cubic root of 80641392 is about 432.0354051915.

The spelling of 80641392 in words is "eighty million, six hundred forty-one thousand, three hundred ninety-two".