80047740 has 24 divisors (see below), whose sum is σ = 224133840. Its totient is φ = 21346048.

The previous prime is 80047733. The next prime is 80047753. The reversal of 80047740 is 4774008.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 80047698 and 80047707.

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, 667005 + ... + 667124.

It is an arithmetic number, because the mean of its divisors is an integer number (9338910).

Almost surely, 2^80047740 is an apocalyptic number.

It is an amenable number.

80047740 is an abundant number, since it is smaller than the sum of its proper divisors (144086100).

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

80047740 is a wasteful number, since it uses less digits than its factorization.

80047740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334141 (or 1334139 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 80047740 is about 8946.9402591053. The cubic root of 80047740 is about 430.9726315562.

The spelling of 80047740 in words is "eighty million, forty-seven thousand, seven hundred forty".