80499072 has 64 divisors (see below), whose sum is σ = 219083760. Its totient is φ = 26173440.

The previous prime is 80499059. The next prime is 80499073. The reversal of 80499072 is 27099408.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×80499072² = 12960201185722368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80499072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80499073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13188 + ... + 18300.

Almost surely, 2^80499072 is an apocalyptic number.

80499072 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80499072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109541880).

80499072 is an abundant number, since it is smaller than the sum of its proper divisors (138584688).

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

80499072 is a wasteful number, since it uses less digits than its factorization.

80499072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 80499072 is about 8972.1275068960. The cubic root of 80499072 is about 431.7810962285.

The spelling of 80499072 in words is "eighty million, four hundred ninety-nine thousand, seventy-two".