1250788878 has 40 divisors (see below), whose sum is σ = 2806048080. Its totient is φ = 416430720.

The previous prime is 1250788871. The next prime is 1250788939. The reversal of 1250788878 is 8788870521.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250788871) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 146343 + ... + 154653.

It is an arithmetic number, because the mean of its divisors is an integer number (70151202).

Almost surely, 2^1250788878 is an apocalyptic number.

1250788878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1250788878 is an abundant number, since it is smaller than the sum of its proper divisors (1555259202).

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

1250788878 is an equidigital number, since it uses as much as digits as its factorization.

1250788878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254 (or 9245 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 54.

The square root of 1250788878 is about 35366.4937193384. The cubic root of 1250788878 is about 1077.4439088449.

It can be divided in two parts, 125078 and 8878, that added together give a square (133956 = 366²).

The spelling of 1250788878 in words is "one billion, two hundred fifty million, seven hundred eighty-eight thousand, eight hundred seventy-eight".