80428632 has 64 divisors (see below), whose sum is σ = 219801600. Its totient is φ = 24414720.

The previous prime is 80428603. The next prime is 80428637. The reversal of 80428632 is 23682408.

It is a junction number, because it is equal to n+sod(n) for n = 80428593 and 80428602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80428637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9469 + ... + 15827.

It is an arithmetic number, because the mean of its divisors is an integer number (3434400).

Almost surely, 2^80428632 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 80428632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109900800).

80428632 is an abundant number, since it is smaller than the sum of its proper divisors (139372968).

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

80428632 is a wasteful number, since it uses less digits than its factorization.

80428632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416 (or 6412 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 80428632 is about 8968.2011574228. The cubic root of 80428632 is about 431.6551174011.

The spelling of 80428632 in words is "eighty million, four hundred twenty-eight thousand, six hundred thirty-two".