1244927397 has 8 divisors (see below), whose sum is σ = 1897032256. Its totient is φ = 711387072.

The previous prime is 1244927347. The next prime is 1244927401. The reversal of 1244927397 is 7937294421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1244927397 - 2¹¹ = 1244925349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244927347) 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 7 ways as a sum of consecutive naturals, for example, 29641108 + ... + 29641149.

It is an arithmetic number, because the mean of its divisors is an integer number (237129032).

Almost surely, 2^1244927397 is an apocalyptic number.

It is an amenable number.

1244927397 is a deficient number, since it is larger than the sum of its proper divisors (652104859).

1244927397 is an equidigital number, since it uses as much as digits as its factorization.

1244927397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59282267.

The product of its digits is 762048, while the sum is 48.

The square root of 1244927397 is about 35283.5286925784. The cubic root of 1244927397 is about 1075.7582239049.

The spelling of 1244927397 in words is "one billion, two hundred forty-four million, nine hundred twenty-seven thousand, three hundred ninety-seven".