80407240 has 64 divisors (see below), whose sum is σ = 191664000. Its totient is φ = 30274560.

The previous prime is 80407231. The next prime is 80407267. The reversal of 80407240 is 4270408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182941 + ... + 183379.

It is an arithmetic number, because the mean of its divisors is an integer number (2994750).

Almost surely, 2^80407240 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 80407240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95832000).

80407240 is an abundant number, since it is smaller than the sum of its proper divisors (111256760).

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

80407240 is a wasteful number, since it uses less digits than its factorization.

80407240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 80407240 is about 8967.0084197574. The cubic root of 80407240 is about 431.6168441940.

Adding to 80407240 its reverse (4270408), we get a palindrome (84677648).

The spelling of 80407240 in words is "eighty million, four hundred seven thousand, two hundred forty".