1250643212 has 96 divisors (see below), whose sum is σ = 2803489920. Its totient is φ = 474808320.

The previous prime is 1250643197. The next prime is 1250643269. The reversal of 1250643212 is 2123460521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 31 ways as a sum of consecutive naturals, for example, 2712662 + ... + 2713122.

It is an arithmetic number, because the mean of its divisors is an integer number (29203020).

Almost surely, 2^1250643212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250643212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401744960).

1250643212 is an abundant number, since it is smaller than the sum of its proper divisors (1552846708).

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

1250643212 is a wasteful number, since it uses less digits than its factorization.

1250643212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1250643212 is about 35364.4342807855. The cubic root of 1250643212 is about 1077.4020810992.

The spelling of 1250643212 in words is "one billion, two hundred fifty million, six hundred forty-three thousand, two hundred twelve".