1250779272 has 32 divisors (see below), whose sum is σ = 3291525600. Its totient is φ = 394982784.

The previous prime is 1250779247. The next prime is 1250779273. The reversal of 1250779272 is 2729770521.

It is not an unprimeable number, because it can be changed into a prime (1250779273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1371013 + ... + 1371924.

It is an arithmetic number, because the mean of its divisors is an integer number (102860175).

Almost surely, 2^1250779272 is an apocalyptic number.

1250779272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1250779272 is an abundant number, since it is smaller than the sum of its proper divisors (2040746328).

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

1250779272 is a wasteful number, since it uses less digits than its factorization.

1250779272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742965 (or 2742961 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 1250779272 is about 35366.3579125700. The cubic root of 1250779272 is about 1077.4411505982.

The spelling of 1250779272 in words is "one billion, two hundred fifty million, seven hundred seventy-nine thousand, two hundred seventy-two".