128850726 has 16 divisors (see below), whose sum is σ = 260359344. Its totient is φ = 42507264.

The previous prime is 128850707. The next prime is 128850779. The reversal of 128850726 is 627058821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110115 + ... + 111278.

It is an arithmetic number, because the mean of its divisors is an integer number (16272459).

Almost surely, 2^128850726 is an apocalyptic number.

128850726 is an abundant number, since it is smaller than the sum of its proper divisors (131508618).

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

128850726 is a wasteful number, since it uses less digits than its factorization.

128850726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221495.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 128850726 is about 11351.2433680192. The cubic root of 128850726 is about 505.0824634148.

The spelling of 128850726 in words is "one hundred twenty-eight million, eight hundred fifty thousand, seven hundred twenty-six".