1199342379 has 4 divisors (see below), whose sum is σ = 1599123176. Its totient is φ = 799561584.

The previous prime is 1199342351. The next prime is 1199342449. The reversal of 1199342379 is 9732439911.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1199342379 - 2²¹ = 1197245227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1199342329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199890394 + ... + 199890399.

It is an arithmetic number, because the mean of its divisors is an integer number (399780794).

Almost surely, 2^1199342379 is an apocalyptic number.

1199342379 is a deficient number, since it is larger than the sum of its proper divisors (399780797).

1199342379 is an equidigital number, since it uses as much as digits as its factorization.

1199342379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399780796.

The product of its digits is 367416, while the sum is 48.

The square root of 1199342379 is about 34631.5229090492. The cubic root of 1199342379 is about 1062.4644152142.

The spelling of 1199342379 in words is "one billion, one hundred ninety-nine million, three hundred forty-two thousand, three hundred seventy-nine".