1250849421 has 12 divisors (see below), whose sum is σ = 1818749920. Its totient is φ = 828376200.

The previous prime is 1250849381. The next prime is 1250849437. The reversal of 1250849421 is 1249480521.

It is not a de Polignac number, because 1250849421 - 2⁶ = 1250849357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250849221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458851 + ... + 461568.

Almost surely, 2^1250849421 is an apocalyptic number.

It is an amenable number.

1250849421 is a deficient number, since it is larger than the sum of its proper divisors (567900499).

1250849421 is a wasteful number, since it uses less digits than its factorization.

1250849421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920576 (or 920573 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1250849421 is about 35367.3496462486. The cubic root of 1250849421 is about 1077.4612927097.

Subtracting from 1250849421 its reverse (1249480521), we obtain a square (1368900 = 1170²).

The spelling of 1250849421 in words is "one billion, two hundred fifty million, eight hundred forty-nine thousand, four hundred twenty-one".