1344642271 has 12 divisors (see below), whose sum is σ = 1606452888. Its totient is φ = 1121398992.

The previous prime is 1344642269. The next prime is 1344642283. The reversal of 1344642271 is 1722464431.

It is not a de Polignac number, because 1344642271 - 2¹ = 1344642269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344642241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369021 + ... + 372646.

It is an arithmetic number, because the mean of its divisors is an integer number (133871074).

Almost surely, 2^1344642271 is an apocalyptic number.

1344642271 is a deficient number, since it is larger than the sum of its proper divisors (261810617).

1344642271 is an equidigital number, since it uses as much as digits as its factorization.

1344642271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741718 (or 741711 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 1344642271 is about 36669.3642022874. The cubic root of 1344642271 is about 1103.7454339255.

The spelling of 1344642271 in words is "one billion, three hundred forty-four million, six hundred forty-two thousand, two hundred seventy-one".