1244290239 has 12 divisors (see below), whose sum is σ = 1798464096. Its totient is φ = 828993312.

The previous prime is 1244290219. The next prime is 1244290253. The reversal of 1244290239 is 9320924421.

It is not a de Polignac number, because 1244290239 - 2¹² = 1244286143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244290219) 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 11 ways as a sum of consecutive naturals, for example, 29422 + ... + 57915.

It is an arithmetic number, because the mean of its divisors is an integer number (149872008).

Almost surely, 2^1244290239 is an apocalyptic number.

1244290239 is a deficient number, since it is larger than the sum of its proper divisors (554173857).

1244290239 is a wasteful number, since it uses less digits than its factorization.

1244290239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88926 (or 88923 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1244290239 is about 35274.4984230818. The cubic root of 1244290239 is about 1075.5746670356.

The spelling of 1244290239 in words is "one billion, two hundred forty-four million, two hundred ninety thousand, two hundred thirty-nine".