1322911749 has 8 divisors (see below), whose sum is σ = 1774704352. Its totient is φ = 876530160.

The previous prime is 1322911721. The next prime is 1322911771. The reversal of 1322911749 is 9471192231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1322911749 - 2²¹ = 1320814597 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 (1322915749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352182 + ... + 1353159.

It is an arithmetic number, because the mean of its divisors is an integer number (221838044).

Almost surely, 2^1322911749 is an apocalyptic number.

It is an amenable number.

1322911749 is a deficient number, since it is larger than the sum of its proper divisors (451792603).

1322911749 is a wasteful number, since it uses less digits than its factorization.

1322911749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705507.

The product of its digits is 27216, while the sum is 39.

The square root of 1322911749 is about 36371.8538020816. The cubic root of 1322911749 is about 1097.7673029866.

The spelling of 1322911749 in words is "one billion, three hundred twenty-two million, nine hundred eleven thousand, seven hundred forty-nine".