1244226140 has 12 divisors (see below), whose sum is σ = 2612874936. Its totient is φ = 497690448.

The previous prime is 1244226133. The next prime is 1244226167. The reversal of 1244226140 is 416224421.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 31105634 + ... + 31105673.

It is an arithmetic number, because the mean of its divisors is an integer number (217739578).

Almost surely, 2^1244226140 is an apocalyptic number.

1244226140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244226140 is an abundant number, since it is smaller than the sum of its proper divisors (1368648796).

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

1244226140 is a wasteful number, since it uses less digits than its factorization.

1244226140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62211316 (or 62211314 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1244226140 is about 35273.5898371572. The cubic root of 1244226140 is about 1075.5561974851.

The spelling of 1244226140 in words is "one billion, two hundred forty-four million, two hundred twenty-six thousand, one hundred forty".