297268920 has 256 divisors, whose sum is σ = 1103155200. Its totient is φ = 70709760.

The previous prime is 297268871. The next prime is 297268943. The reversal of 297268920 is 29862792.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 434899 + ... + 435581.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^297268920 is an apocalyptic number.

297268920 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 297268920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551577600).

297268920 is an abundant number, since it is smaller than the sum of its proper divisors (805886280).

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

297268920 is a wasteful number, since it uses less digits than its factorization.

297268920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 297268920 is about 17241.4883348277. The cubic root of 297268920 is about 667.3953377120.

The spelling of 297268920 in words is "two hundred ninety-seven million, two hundred sixty-eight thousand, nine hundred twenty".