299700640 has 48 divisors (see below), whose sum is σ = 710307360. Its totient is φ = 119496960.

The previous prime is 299700593. The next prime is 299700671. The reversal of 299700640 is 46007992.

It is a self number, because there is not a number n which added to its sum of digits gives 299700640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50131 + ... + 55789.

It is an arithmetic number, because the mean of its divisors is an integer number (14798070).

Almost surely, 2^299700640 is an apocalyptic number.

299700640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299700640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355153680).

299700640 is an abundant number, since it is smaller than the sum of its proper divisors (410606720).

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

299700640 is a wasteful number, since it uses less digits than its factorization.

299700640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005 (or 5997 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 299700640 is about 17311.8641399475. The cubic root of 299700640 is about 669.2102077012.

The spelling of 299700640 in words is "two hundred ninety-nine million, seven hundred thousand, six hundred forty".