1199640922 has 8 divisors (see below), whose sum is σ = 1807990272. Its totient is φ = 596977500.

The previous prime is 1199640919. The next prime is 1199640947. The reversal of 1199640922 is 2290469911.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420954 + ... + 1421797.

It is an arithmetic number, because the mean of its divisors is an integer number (225998784).

Almost surely, 2^1199640922 is an apocalyptic number.

1199640922 is a deficient number, since it is larger than the sum of its proper divisors (608349350).

1199640922 is a wasteful number, since it uses less digits than its factorization.

1199640922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842964.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 1199640922 is about 34635.8329191027. The cubic root of 1199640922 is about 1062.5525649104.

The spelling of 1199640922 in words is "one billion, one hundred ninety-nine million, six hundred forty thousand, nine hundred twenty-two".