80040424 has 8 divisors (see below), whose sum is σ = 150075810. Its totient is φ = 40020208.

The previous prime is 80040413. The next prime is 80040431. The reversal of 80040424 is 42404008.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 39463524 = 6370^2 + 6282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 80040395 and 80040404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002519 + ... + 5002534.

Almost surely, 2^80040424 is an apocalyptic number.

It is an amenable number.

80040424 is a deficient number, since it is larger than the sum of its proper divisors (70035386).

80040424 is a wasteful number, since it uses less digits than its factorization.

80040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005059 (or 10005055 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 80040424 is about 8946.5313949038. The cubic root of 80040424 is about 430.9595015089.

The spelling of 80040424 in words is "eighty million, forty thousand, four hundred twenty-four".