80438015 has 16 divisors (see below), whose sum is σ = 115112448. Its totient is φ = 52758816.

The previous prime is 80438011. The next prime is 80438027. The reversal of 80438015 is 51083408.

It is a cyclic number.

It is not a de Polignac number, because 80438015 - 2² = 80438011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80438011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49157 + ... + 50766.

It is an arithmetic number, because the mean of its divisors is an integer number (7194528).

Almost surely, 2^80438015 is an apocalyptic number.

80438015 is a deficient number, since it is larger than the sum of its proper divisors (34674433).

80438015 is a wasteful number, since it uses less digits than its factorization.

80438015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99958.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 80438015 is about 8968.7242682558. The cubic root of 80438015 is about 431.6719027273.

The spelling of 80438015 in words is "eighty million, four hundred thirty-eight thousand, fifteen".