80040686 has 8 divisors (see below), whose sum is σ = 130975704. Its totient is φ = 36382120.

The previous prime is 80040683. The next prime is 80040689. The reversal of 80040686 is 68604008.

It is an interprime number because it is at equal distance from previous prime (80040683) and next prime (80040689).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×80040686² = 12813022830701192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80040683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819085 + ... + 1819128.

It is an arithmetic number, because the mean of its divisors is an integer number (16371963).

Almost surely, 2^80040686 is an apocalyptic number.

80040686 is a deficient number, since it is larger than the sum of its proper divisors (50935018).

80040686 is a wasteful number, since it uses less digits than its factorization.

80040686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638226.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 80040686 is about 8946.5460374381. The cubic root of 80040686 is about 430.9599717349.

The spelling of 80040686 in words is "eighty million, forty thousand, six hundred eighty-six".