1344994957 has 2 divisors, whose sum is σ = 1344994958. Its totient is φ = 1344994956.

The previous prime is 1344994949. The next prime is 1344994969. The reversal of 1344994957 is 7594994431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874148356 + 470846601 = 29566^2 + 21699^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344994957 - 2³ = 1344994949 is a prime.

It is a super-3 number, since 3×1344994957³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1344994898 and 1344994907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344994907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672497478 + 672497479.

It is an arithmetic number, because the mean of its divisors is an integer number (672497479).

Almost surely, 2^1344994957 is an apocalyptic number.

It is an amenable number.

1344994957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344994957 is an equidigital number, since it uses as much as digits as its factorization.

1344994957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 55.

The square root of 1344994957 is about 36674.1728877421. The cubic root of 1344994957 is about 1103.8419258925.

The spelling of 1344994957 in words is "one billion, three hundred forty-four million, nine hundred ninety-four thousand, nine hundred fifty-seven".