80949924 has 72 divisors (see below), whose sum is σ = 224235648. Its totient is φ = 24419520.

The previous prime is 80949917. The next prime is 80949929. The reversal of 80949924 is 42994908.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80949924.

It is not an unprimeable number, because it can be changed into a prime (80949929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145054 + ... + 145610.

It is an arithmetic number, because the mean of its divisors is an integer number (3114384).

Almost surely, 2^80949924 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 80949924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112117824).

80949924 is an abundant number, since it is smaller than the sum of its proper divisors (143285724).

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

80949924 is a wasteful number, since it uses less digits than its factorization.

80949924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 80949924 is about 8997.2175698935. The cubic root of 80949924 is about 432.5856896383.

The spelling of 80949924 in words is "eighty million, nine hundred forty-nine thousand, nine hundred twenty-four".