299392990 has 32 divisors (see below), whose sum is σ = 581676480. Its totient is φ = 110294784.

The previous prime is 299392979. The next prime is 299392999. The reversal of 299392990 is 99293992.

It is a super-2 number, since 2×299392990² = 179272324922280200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299392999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60946 + ... + 65674.

It is an arithmetic number, because the mean of its divisors is an integer number (18177390).

Almost surely, 2^299392990 is an apocalyptic number.

299392990 is a deficient number, since it is larger than the sum of its proper divisors (282283490).

299392990 is a wasteful number, since it uses less digits than its factorization.

299392990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 299392990 is about 17302.9763335676. The cubic root of 299392990 is about 668.9811424486.

The spelling of 299392990 in words is "two hundred ninety-nine million, three hundred ninety-two thousand, nine hundred ninety".