1396197449 has 4 divisors (see below), whose sum is σ = 1396280964. Its totient is φ = 1396113936.

The previous prime is 1396197443. The next prime is 1396197461. The reversal of 1396197449 is 9447916931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 92987449 + 1303210000 = 9643^2 + 36100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396197449 - 2⁴ = 1396197433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1396197449.

It is not an unprimeable number, because it can be changed into a prime (1396197443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7082 + ... + 53315.

It is an arithmetic number, because the mean of its divisors is an integer number (349070241).

Almost surely, 2^1396197449 is an apocalyptic number.

It is an amenable number.

1396197449 is a deficient number, since it is larger than the sum of its proper divisors (83515).

1396197449 is an equidigital number, since it uses as much as digits as its factorization.

1396197449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83514.

The product of its digits is 1469664, while the sum is 53.

The square root of 1396197449 is about 37365.7255917773. The cubic root of 1396197449 is about 1117.6751971047.

The spelling of 1396197449 in words is "one billion, three hundred ninety-six million, one hundred ninety-seven thousand, four hundred forty-nine".