1199319264 has 384 divisors, whose sum is σ = 4358914560. Its totient is φ = 315187200.

The previous prime is 1199319259. The next prime is 1199319271. The reversal of 1199319264 is 4629139911.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2100099 + ... + 2100669.

It is an arithmetic number, because the mean of its divisors is an integer number (11351340).

Almost surely, 2^1199319264 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 1199319264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179457280).

1199319264 is an abundant number, since it is smaller than the sum of its proper divisors (3159595296).

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

1199319264 is a wasteful number, since it uses less digits than its factorization.

1199319264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 617 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1199319264 is about 34631.1891796975. The cubic root of 1199319264 is about 1062.4575895229.

The spelling of 1199319264 in words is "one billion, one hundred ninety-nine million, three hundred nineteen thousand, two hundred sixty-four".