80458918 has 4 divisors (see below), whose sum is σ = 120688380. Its totient is φ = 40229458.

The previous prime is 80458871. The next prime is 80458967. The reversal of 80458918 is 81985408.

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, 20114728 + ... + 20114731.

It is an arithmetic number, because the mean of its divisors is an integer number (30172095).

Almost surely, 2^80458918 is an apocalyptic number.

80458918 is a deficient number, since it is larger than the sum of its proper divisors (40229462).

80458918 is a wasteful number, since it uses less digits than its factorization.

80458918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40229461.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 80458918 is about 8969.8895199439. The cubic root of 80458918 is about 431.7092915842.

The spelling of 80458918 in words is "eighty million, four hundred fifty-eight thousand, nine hundred eighteen".