1244397 has 16 divisors (see below), whose sum is σ = 2068992. Its totient is φ = 646320.

The previous prime is 1244393. The next prime is 1244401. The reversal of 1244397 is 7934421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1244393) and next prime (1244401).

It is not a de Polignac number, because 1244397 - 2² = 1244393 is a prime.

1244397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463 + ... + 2924.

It is an arithmetic number, because the mean of its divisors is an integer number (129312).

2^1244397 is an apocalyptic number.

It is an amenable number.

1244397 is a deficient number, since it is larger than the sum of its proper divisors (824595).

1244397 is a wasteful number, since it uses less digits than its factorization.

1244397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408.

The product of its digits is 6048, while the sum is 30.

The square root of 1244397 is about 1115.5254367337. The cubic root of 1244397 is about 107.5605427850.

The spelling of 1244397 in words is "one million, two hundred forty-four thousand, three hundred ninety-seven".