80220726 has 32 divisors (see below), whose sum is σ = 180011520. Its totient is φ = 26478792.

The previous prime is 80220719. The next prime is 80220727. The reversal of 80220726 is 62702208.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 80220726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80220727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650 + ... + 12773.

It is an arithmetic number, because the mean of its divisors is an integer number (5625360).

Almost surely, 2^80220726 is an apocalyptic number.

80220726 is an abundant number, since it is smaller than the sum of its proper divisors (99790794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80220726 is a wasteful number, since it uses less digits than its factorization.

80220726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537 (or 14531 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 80220726 is about 8956.6023692023. The cubic root of 80220726 is about 431.2828572319.

It can be divided in two parts, 802 and 20726, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 80220726 in words is "eighty million, two hundred twenty thousand, seven hundred twenty-six".