1320272244 has 48 divisors (see below), whose sum is σ = 3432723840. Its totient is φ = 438831360.

The previous prime is 1320272203. The next prime is 1320272281. The reversal of 1320272244 is 4422720231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 20809 + ... + 55439.

It is an arithmetic number, because the mean of its divisors is an integer number (71515080).

Almost surely, 2^1320272244 is an apocalyptic number.

It is an amenable number.

1320272244 is an abundant number, since it is smaller than the sum of its proper divisors (2112451596).

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

1320272244 is a wasteful number, since it uses less digits than its factorization.

1320272244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34997 (or 34989 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 1320272244 is about 36335.5506907491. The cubic root of 1320272244 is about 1097.0367197305.

Adding to 1320272244 its reverse (4422720231), we get a palindrome (5742992475).

The spelling of 1320272244 in words is "one billion, three hundred twenty million, two hundred seventy-two thousand, two hundred forty-four".