1199040893 has 6 divisors (see below), whose sum is σ = 1219711614. Its totient is φ = 1178714744.

The previous prime is 1199040883. The next prime is 1199040901. The reversal of 1199040893 is 3980409911.

It can be written as a sum of positive squares in only one way, i.e., 730188484 + 468852409 = 27022^2 + 21653^2 .

It is not a de Polignac number, because 1199040893 - 2⁸ = 1199040637 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 (1199040863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168746 + ... + 175707.

It is an arithmetic number, because the mean of its divisors is an integer number (203285269).

Almost surely, 2^1199040893 is an apocalyptic number.

It is an amenable number.

1199040893 is a deficient number, since it is larger than the sum of its proper divisors (20670721).

1199040893 is an frugal number, since it uses more digits than its factorization.

1199040893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344571 (or 344512 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1199040893 is about 34627.1698670278. The cubic root of 1199040893 is about 1062.3753817027.

The spelling of 1199040893 in words is "one billion, one hundred ninety-nine million, forty thousand, eight hundred ninety-three".