1244492844 has 48 divisors (see below), whose sum is σ = 3399599616. Its totient is φ = 346896000.

The previous prime is 1244492839. The next prime is 1244492857. The reversal of 1244492844 is 4482944421.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1244492796 and 1244492805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177232 + ... + 184119.

It is an arithmetic number, because the mean of its divisors is an integer number (70824992).

Almost surely, 2^1244492844 is an apocalyptic number.

1244492844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1244492844 is an abundant number, since it is smaller than the sum of its proper divisors (2155106772).

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

1244492844 is a wasteful number, since it uses less digits than its factorization.

1244492844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361406 (or 361404 counting only the distinct ones).

The product of its digits is 294912, while the sum is 42.

The square root of 1244492844 is about 35277.3701400771. The cubic root of 1244492844 is about 1075.6330416742.

The spelling of 1244492844 in words is "one billion, two hundred forty-four million, four hundred ninety-two thousand, eight hundred forty-four".