80049744 has 90 divisors (see below), whose sum is σ = 232370606. Its totient is φ = 25724160.

The previous prime is 80049743. The next prime is 80049811. The reversal of 80049744 is 44794008.

It can be written as a sum of positive squares in 3 ways, for example, as 23619600 + 56430144 = 4860^2 + 7512^2 .

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 = 80049699 and 80049708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80049743) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 120774 + ... + 121434.

Almost surely, 2^80049744 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 80049744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116185303).

80049744 is an abundant number, since it is smaller than the sum of its proper divisors (152320862).

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

80049744 is a wasteful number, since it uses less digits than its factorization.

80049744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 80049744 is about 8947.0522519990. The cubic root of 80049744 is about 430.9762280014.

The spelling of 80049744 in words is "eighty million, forty-nine thousand, seven hundred forty-four".