80438840 has 16 divisors (see below), whose sum is σ = 180987480. Its totient is φ = 32175520.

The previous prime is 80438833. The next prime is 80438863. The reversal of 80438840 is 4883408.

It is a self number, because there is not a number n which added to its sum of digits gives 80438840.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1005446 + ... + 1005525.

Almost surely, 2^80438840 is an apocalyptic number.

It is an amenable number.

80438840 is an abundant number, since it is smaller than the sum of its proper divisors (100548640).

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

80438840 is a wasteful number, since it uses less digits than its factorization.

80438840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010982 (or 2010978 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 80438840 is about 8968.7702613012. The cubic root of 80438840 is about 431.6733785142.

The spelling of 80438840 in words is "eighty million, four hundred thirty-eight thousand, eight hundred forty".