80313240 has 128 divisors (see below), whose sum is σ = 287400960. Its totient is φ = 17554944.

The previous prime is 80313239. The next prime is 80313251. The reversal of 80313240 is 4231308.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17242 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^80313240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80313240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143700480).

80313240 is an abundant number, since it is smaller than the sum of its proper divisors (207087720).

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

80313240 is a wasteful number, since it uses less digits than its factorization.

80313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201 (or 4197 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 80313240 is about 8961.7654510705. The cubic root of 80313240 is about 431.4485848688.

Adding to 80313240 its reverse (4231308), we get a palindrome (84544548).

The spelling of 80313240 in words is "eighty million, three hundred thirteen thousand, two hundred forty".