722280878 has 8 divisors (see below), whose sum is σ = 1181914200. Its totient is φ = 328309480.

The previous prime is 722280869. The next prime is 722280883. The reversal of 722280878 is 878082227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16415453 + ... + 16415496.

It is an arithmetic number, because the mean of its divisors is an integer number (147739275).

Almost surely, 2^722280878 is an apocalyptic number.

722280878 is a deficient number, since it is larger than the sum of its proper divisors (459633322).

722280878 is a wasteful number, since it uses less digits than its factorization.

722280878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32830962.

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 722280878 is about 26875.2837752460. The cubic root of 722280878 is about 897.2263903203.

The spelling of 722280878 in words is "seven hundred twenty-two million, two hundred eighty thousand, eight hundred seventy-eight".