1344400015 has 12 divisors (see below), whose sum is σ = 1876673016. Its totient is φ = 921874128.

The previous prime is 1344399997. The next prime is 1344400037. The reversal of 1344400015 is 5100044431.

1344400015 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1344400015 - 2⁹ = 1344399503 is a prime.

It is a super-2 number, since 2×1344400015² = 3614822800664000450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2743429 + ... + 2743918.

It is an arithmetic number, because the mean of its divisors is an integer number (156389418).

Almost surely, 2^1344400015 is an apocalyptic number.

1344400015 is a deficient number, since it is larger than the sum of its proper divisors (532273001).

1344400015 is an equidigital number, since it uses as much as digits as its factorization.

1344400015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487366 (or 5487359 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1344400015 is about 36666.0608056006. The cubic root of 1344400015 is about 1103.6791449159.

Adding to 1344400015 its reverse (5100044431), we get a palindrome (6444444446).

The spelling of 1344400015 in words is "one billion, three hundred forty-four million, four hundred thousand, fifteen".