80880440 has 16 divisors (see below), whose sum is σ = 181981080. Its totient is φ = 32352160.

The previous prime is 80880433. The next prime is 80880461. The reversal of 80880440 is 4408808.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 80880397 and 80880406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010966 + ... + 1011045.

Almost surely, 2^80880440 is an apocalyptic number.

It is an amenable number.

80880440 is an abundant number, since it is smaller than the sum of its proper divisors (101100640).

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

80880440 is a wasteful number, since it uses less digits than its factorization.

80880440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022022 (or 2022018 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 80880440 is about 8993.3553249052. The cubic root of 80880440 is about 432.4618831054.

The spelling of 80880440 in words is "eighty million, eight hundred eighty thousand, four hundred forty".