80884440 has 256 divisors, whose sum is σ = 332236800. Its totient is φ = 17044992.

The previous prime is 80884423. The next prime is 80884459. The reversal of 80884440 is 4448808.

It is a super-2 number, since 2×80884440² = 13084585268227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80884395 and 80884404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97869 + ... + 98691.

It is an arithmetic number, because the mean of its divisors is an integer number (1297800).

Almost surely, 2^80884440 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 80884440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166118400).

80884440 is an abundant number, since it is smaller than the sum of its proper divisors (251352360).

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

80884440 is a wasteful number, since it uses less digits than its factorization.

80884440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 80884440 is about 8993.5777085652. The cubic root of 80884440 is about 432.4690122251.

The spelling of 80884440 in words is "eighty million, eight hundred eighty-four thousand, four hundred forty".