1250126380 has 24 divisors (see below), whose sum is σ = 2628592848. Its totient is φ = 499416768.

The previous prime is 1250126357. The next prime is 1250126393. The reversal of 1250126380 is 836210521.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23274 + ... + 55153.

It is an arithmetic number, because the mean of its divisors is an integer number (109524702).

Almost surely, 2^1250126380 is an apocalyptic number.

1250126380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250126380 is an abundant number, since it is smaller than the sum of its proper divisors (1378466468).

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

1250126380 is a wasteful number, since it uses less digits than its factorization.

1250126380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79233 (or 79231 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1250126380 is about 35357.1262972544. The cubic root of 1250126380 is about 1077.2536474533.

The spelling of 1250126380 in words is "one billion, two hundred fifty million, one hundred twenty-six thousand, three hundred eighty".