1244497407 has 8 divisors (see below), whose sum is σ = 1665941760. Its totient is φ = 826359000.

The previous prime is 1244497403. The next prime is 1244497411. The reversal of 1244497407 is 7047944421.

It is an interprime number because it is at equal distance from previous prime (1244497403) and next prime (1244497411).

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

It is not a de Polignac number, because 1244497407 - 2² = 1244497403 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244497403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825607 + ... + 827112.

It is an arithmetic number, because the mean of its divisors is an integer number (208242720).

Almost surely, 2^1244497407 is an apocalyptic number.

1244497407 is a deficient number, since it is larger than the sum of its proper divisors (421444353).

1244497407 is a wasteful number, since it uses less digits than its factorization.

1244497407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652973.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 1244497407 is about 35277.4348132060. The cubic root of 1244497407 is about 1075.6343562947.

The spelling of 1244497407 in words is "one billion, two hundred forty-four million, four hundred ninety-seven thousand, four hundred seven".