297000000 has 392 divisors, whose sum is σ = 1190609760. Its totient is φ = 72000000.

The previous prime is 296999993. The next prime is 297000019. The reversal of 297000000 is 792.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 55 ways as a sum of consecutive naturals, for example, 26999995 + ... + 27000005.

Almost surely, 2^297000000 is an apocalyptic number.

297000000 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 297000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595304880).

297000000 is an abundant number, since it is smaller than the sum of its proper divisors (893609760).

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

297000000 is an frugal number, since it uses more digits than its factorization.

297000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 297000000 is about 17233.6879396141. The cubic root of 297000000 is about 667.1940271708.

Adding to 297000000 its reverse (792), we get a palindrome (297000792).

The spelling of 297000000 in words is "two hundred ninety-seven million", and thus it is an aban number.