1244350872 has 48 divisors (see below), whose sum is σ = 3372141240. Its totient is φ = 414534528.

The previous prime is 1244350847. The next prime is 1244350873. The reversal of 1244350872 is 2780534421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244350873) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 145828 + ... + 154124.

Almost surely, 2^1244350872 is an apocalyptic number.

1244350872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244350872 is an abundant number, since it is smaller than the sum of its proper divisors (2127790368).

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

1244350872 is a wasteful number, since it uses less digits than its factorization.

1244350872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10392 (or 10385 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1244350872 is about 35275.3578578588. The cubic root of 1244350872 is about 1075.5921373057.

The spelling of 1244350872 in words is "one billion, two hundred forty-four million, three hundred fifty thousand, eight hundred seventy-two".