80309318 has 4 divisors (see below), whose sum is σ = 120463980. Its totient is φ = 40154658.

The previous prime is 80309303. The next prime is 80309321. The reversal of 80309318 is 81390308.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20077328 + ... + 20077331.

It is an arithmetic number, because the mean of its divisors is an integer number (30115995).

Almost surely, 2^80309318 is an apocalyptic number.

80309318 is a deficient number, since it is larger than the sum of its proper divisors (40154662).

80309318 is a wasteful number, since it uses less digits than its factorization.

80309318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40154661.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80309318 is about 8961.5466299071. The cubic root of 80309318 is about 431.4415616644.

The spelling of 80309318 in words is "eighty million, three hundred nine thousand, three hundred eighteen".