1199090268 has 36 divisors (see below), whose sum is σ = 3032084328. Its totient is φ = 399558240.

The previous prime is 1199090267. The next prime is 1199090287. The reversal of 1199090268 is 8620909911.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199090267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201658 + ... + 207518.

Almost surely, 2^1199090268 is an apocalyptic number.

1199090268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1199090268 is an abundant number, since it is smaller than the sum of its proper divisors (1832994060).

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

1199090268 is a wasteful number, since it uses less digits than its factorization.

1199090268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11554 (or 11549 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 1199090268 is about 34627.8828113993. The cubic root of 1199090268 is about 1062.3899639311.

The spelling of 1199090268 in words is "one billion, one hundred ninety-nine million, ninety thousand, two hundred sixty-eight".