1912322399 has 8 divisors (see below), whose sum is σ = 2061138912. Its totient is φ = 1763750880.

The previous prime is 1912322353. The next prime is 1912322429. The reversal of 1912322399 is 9932232191.

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

It is a cyclic number.

It is not a de Polignac number, because 1912322399 - 2²⁸ = 1643886943 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 (1912222399) 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, 44867 + ... + 76404.

It is an arithmetic number, because the mean of its divisors is an integer number (257642364).

Almost surely, 2^1912322399 is an apocalyptic number.

1912322399 is a deficient number, since it is larger than the sum of its proper divisors (148816513).

1912322399 is a wasteful number, since it uses less digits than its factorization.

1912322399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122497.

The product of its digits is 52488, while the sum is 41.

The square root of 1912322399 is about 43730.1086095153. The cubic root of 1912322399 is about 1241.2341162419.

The spelling of 1912322399 in words is "one billion, nine hundred twelve million, three hundred twenty-two thousand, three hundred ninety-nine".