1244374491 has 32 divisors (see below), whose sum is σ = 1758919680. Its totient is φ = 781526016.

The previous prime is 1244374447. The next prime is 1244374493. The reversal of 1244374491 is 1944734421.

It is not a de Polignac number, because 1244374491 - 2¹⁴ = 1244358107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244374493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504820 + ... + 507278.

It is an arithmetic number, because the mean of its divisors is an integer number (54966240).

Almost surely, 2^1244374491 is an apocalyptic number.

1244374491 is a deficient number, since it is larger than the sum of its proper divisors (514545189).

1244374491 is a wasteful number, since it uses less digits than its factorization.

1244374491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its digits is 96768, while the sum is 39.

The square root of 1244374491 is about 35275.6926367152. The cubic root of 1244374491 is about 1075.5989425272.

The spelling of 1244374491 in words is "one billion, two hundred forty-four million, three hundred seventy-four thousand, four hundred ninety-one".