80605456 has 40 divisors (see below), whose sum is σ = 162362624. Its totient is φ = 38724480.

The previous prime is 80605439. The next prime is 80605463. The reversal of 80605456 is 65450608.

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, 80350 + ... + 81346.

Almost surely, 2^80605456 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 80605456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81181312).

80605456 is an abundant number, since it is smaller than the sum of its proper divisors (81757168).

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

80605456 is a wasteful number, since it uses less digits than its factorization.

80605456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 80605456 is about 8978.0541321603. The cubic root of 80605456 is about 431.9712200763.

The spelling of 80605456 in words is "eighty million, six hundred five thousand, four hundred fifty-six".