1344750981 has 16 divisors (see below), whose sum is σ = 2092744704. Its totient is φ = 752079024.

The previous prime is 1344750943. The next prime is 1344750989. The reversal of 1344750981 is 1890574431.

It is a happy number.

It is not a de Polignac number, because 1344750981 - 2¹⁵ = 1344718213 is a prime.

It is a super-2 number, since 2×1344750981² = 3616710401800924722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344750989) 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, 680245 + ... + 682218.

It is an arithmetic number, because the mean of its divisors is an integer number (130796544).

Almost surely, 2^1344750981 is an apocalyptic number.

It is an amenable number.

1344750981 is a deficient number, since it is larger than the sum of its proper divisors (747993723).

1344750981 is a wasteful number, since it uses less digits than its factorization.

1344750981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362520.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1344750981 is about 36670.8464723682. The cubic root of 1344750981 is about 1103.7751778793.

The spelling of 1344750981 in words is "one billion, three hundred forty-four million, seven hundred fifty thousand, nine hundred eighty-one".