299930225 has 18 divisors (see below), whose sum is σ = 432635814. Its totient is φ = 205665600.

The previous prime is 299930221. The next prime is 299930227. The reversal of 299930225 is 522039992.

It can be written as a sum of positive squares in 3 ways, for example, as 2436721 + 297493504 = 1561^2 + 17248^2 .

It is not a de Polignac number, because 299930225 - 2² = 299930221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299930221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 121196 + ... + 123645.

It is an arithmetic number, because the mean of its divisors is an integer number (24035323).

Almost surely, 2^299930225 is an apocalyptic number.

299930225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

299930225 is a deficient number, since it is larger than the sum of its proper divisors (132705589).

299930225 is a wasteful number, since it uses less digits than its factorization.

299930225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244865 (or 244853 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 299930225 is about 17318.4937278044. The cubic root of 299930225 is about 669.3810464090.

The spelling of 299930225 in words is "two hundred ninety-nine million, nine hundred thirty thousand, two hundred twenty-five".