80043240 has 64 divisors (see below), whose sum is σ = 247887360. Its totient is φ = 20655360.

The previous prime is 80043239. The next prime is 80043287. The reversal of 80043240 is 4234008.

It is a happy number.

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, 7039 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (3873240).

Almost surely, 2^80043240 is an apocalyptic number.

It is an amenable number.

80043240 is an abundant number, since it is smaller than the sum of its proper divisors (167844120).

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

80043240 is a wasteful number, since it uses less digits than its factorization.

80043240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21562 (or 21558 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 80043240 is about 8946.6887729483. The cubic root of 80043240 is about 430.9645554873.

Adding to 80043240 its product of nonzero digits (768), we get a palindrome (80044008).

Adding to 80043240 its reverse (4234008), we get a palindrome (84277248).

The spelling of 80043240 in words is "eighty million, forty-three thousand, two hundred forty".