80399376 has 60 divisors (see below), whose sum is σ = 225623580. Its totient is φ = 26726400.

The previous prime is 80399369. The next prime is 80399377. The reversal of 80399376 is 67399308.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29419776 + 50979600 = 5424^2 + 7140^2 .

It is a super-2 number, since 2×80399376² = 12928119322378752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80399377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86080 + ... + 87008.

It is an arithmetic number, because the mean of its divisors is an integer number (3760393).

Almost surely, 2^80399376 is an apocalyptic number.

It is an amenable number.

80399376 is an abundant number, since it is smaller than the sum of its proper divisors (145224204).

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

80399376 is a wasteful number, since it uses less digits than its factorization.

80399376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 80399376 is about 8966.5699127370. The cubic root of 80399376 is about 431.6027727185.

The spelling of 80399376 in words is "eighty million, three hundred ninety-nine thousand, three hundred seventy-six".