878401250 has 20 divisors (see below), whose sum is σ = 1646477646. Its totient is φ = 351360000.

The previous prime is 878401247. The next prime is 878401259. The reversal of 878401250 is 52104878.

It can be written as a sum of positive squares in 5 ways, for example, as 5257849 + 873143401 = 2293^2 + 29549^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 878401250.

It is not an unprimeable number, because it can be changed into a prime (878401259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 350111 + ... + 352610.

Almost surely, 2^878401250 is an apocalyptic number.

878401250 is a deficient number, since it is larger than the sum of its proper divisors (768076396).

878401250 is an equidigital number, since it uses as much as digits as its factorization.

878401250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702743 (or 702728 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 878401250 is about 29637.8347724661. The cubic root of 878401250 is about 957.7032951889.

The spelling of 878401250 in words is "eight hundred seventy-eight million, four hundred one thousand, two hundred fifty".