299140056 has 96 divisors (see below), whose sum is σ = 831364560. Its totient is φ = 97134336.

The previous prime is 299140031. The next prime is 299140067. The reversal of 299140056 is 650041992.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 299140056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1056891 + ... + 1057173.

Almost surely, 2^299140056 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 299140056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415682280).

299140056 is an abundant number, since it is smaller than the sum of its proper divisors (532224504).

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

299140056 is a wasteful number, since it uses less digits than its factorization.

299140056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 299140056 is about 17295.6658154579. The cubic root of 299140056 is about 668.7926992156.

The spelling of 299140056 in words is "two hundred ninety-nine million, one hundred forty thousand, fifty-six".