80339820 has 48 divisors (see below), whose sum is σ = 245403648. Its totient is φ = 19476160.

The previous prime is 80339813. The next prime is 80339821. The reversal of 80339820 is 2893308.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (80339821) 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, 60204 + ... + 61523.

It is an arithmetic number, because the mean of its divisors is an integer number (5112576).

Almost surely, 2^80339820 is an apocalyptic number.

It is an amenable number.

80339820 is an abundant number, since it is smaller than the sum of its proper divisors (165063828).

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

80339820 is a wasteful number, since it uses less digits than its factorization.

80339820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121750 (or 121748 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 80339820 is about 8963.2482951216. The cubic root of 80339820 is about 431.4961761854.

It can be divided in two parts, 80 and 339820, that added together give a triangular number (339900 = T₈₂₄).

The spelling of 80339820 in words is "eighty million, three hundred thirty-nine thousand, eight hundred twenty".