80439388 has 24 divisors (see below), whose sum is σ = 153291600. Its totient is φ = 36787968.

The previous prime is 80439383. The next prime is 80439431. The reversal of 80439388 is 88393408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80439383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16045 + ... + 20452.

It is an arithmetic number, because the mean of its divisors is an integer number (6387150).

Almost surely, 2^80439388 is an apocalyptic number.

It is an amenable number.

80439388 is a deficient number, since it is larger than the sum of its proper divisors (72852212).

80439388 is a wasteful number, since it uses less digits than its factorization.

80439388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36549 (or 36547 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 80439388 is about 8968.8008117028. The cubic root of 80439388 is about 431.6743587889.

The spelling of 80439388 in words is "eighty million, four hundred thirty-nine thousand, three hundred eighty-eight".