80397240 has 288 divisors, whose sum is σ = 311124240. Its totient is φ = 16558080.

The previous prime is 80397209. The next prime is 80397241. The reversal of 80397240 is 4279308.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80397241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 711424 + ... + 711536.

Almost surely, 2^80397240 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 80397240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155562120).

80397240 is an abundant number, since it is smaller than the sum of its proper divisors (230727000).

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

80397240 is a wasteful number, since it uses less digits than its factorization.

80397240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 80397240 is about 8966.4508028539. The cubic root of 80397240 is about 431.5989505011.

The spelling of 80397240 in words is "eighty million, three hundred ninety-seven thousand, two hundred forty".