789128450 has 24 divisors (see below), whose sum is σ = 1601214480. Its totient is φ = 286955600.

The previous prime is 789128441. The next prime is 789128497. The reversal of 789128450 is 54821987.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716840 + ... + 717939.

It is an arithmetic number, because the mean of its divisors is an integer number (66717270).

Almost surely, 2^789128450 is an apocalyptic number.

789128450 is an abundant number, since it is smaller than the sum of its proper divisors (812086030).

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

789128450 is a wasteful number, since it uses less digits than its factorization.

789128450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434802 (or 1434797 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 789128450 is about 28091.4301878705. The cubic root of 789128450 is about 924.0934678348.

The spelling of 789128450 in words is "seven hundred eighty-nine million, one hundred twenty-eight thousand, four hundred fifty".