78592280 has 64 divisors (see below), whose sum is σ = 191419200. Its totient is φ = 28869120.

The previous prime is 78592247. The next prime is 78592301. The reversal of 78592280 is 8229587.

It is a happy number.

It is a super-5 number, since 5×78592280⁵ (a number of 41 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 186470 + ... + 186890.

It is an arithmetic number, because the mean of its divisors is an integer number (2990925).

Almost surely, 2^78592280 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 78592280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95709600).

78592280 is an abundant number, since it is smaller than the sum of its proper divisors (112826920).

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

78592280 is a wasteful number, since it uses less digits than its factorization.

78592280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 78592280 is about 8865.2287054537. The cubic root of 78592280 is about 428.3445997565.

The spelling of 78592280 in words is "seventy-eight million, five hundred ninety-two thousand, two hundred eighty".