80539290 has 96 divisors (see below), whose sum is σ = 237444480. Its totient is φ = 18776448.

The previous prime is 80539289. The next prime is 80539297. The reversal of 80539290 is 9293508.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80539297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20419 + ... + 24041.

It is an arithmetic number, because the mean of its divisors is an integer number (2473380).

Almost surely, 2^80539290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80539290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118722240).

80539290 is an abundant number, since it is smaller than the sum of its proper divisors (156905190).

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

80539290 is a wasteful number, since it uses less digits than its factorization.

80539290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668 (or 3665 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 80539290 is about 8974.3685014601. The cubic root of 80539290 is about 431.8529913884.

The spelling of 80539290 in words is "eighty million, five hundred thirty-nine thousand, two hundred ninety".