1199343992 has 96 divisors (see below), whose sum is σ = 3004128000. Its totient is φ = 442653120.

The previous prime is 1199343983. The next prime is 1199344007. The reversal of 1199343992 is 2993439911.

It is a super-2 number, since 2×1199343992² = 2876852022292992128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1199343992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74609 + ... + 89247.

It is an arithmetic number, because the mean of its divisors is an integer number (31293000).

Almost surely, 2^1199343992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1199343992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502064000).

1199343992 is an abundant number, since it is smaller than the sum of its proper divisors (1804784008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1199343992 is a wasteful number, since it uses less digits than its factorization.

1199343992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689 (or 14678 counting only the distinct ones).

The product of its digits is 472392, while the sum is 50.

The square root of 1199343992 is about 34631.5461970730. The cubic root of 1199343992 is about 1062.4648915181.

The spelling of 1199343992 in words is "one billion, one hundred ninety-nine million, three hundred forty-three thousand, nine hundred ninety-two".