297450240 has 144 divisors (see below), whose sum is σ = 964244736. Its totient is φ = 78131200.

The previous prime is 297450233. The next prime is 297450271. The reversal of 297450240 is 42054792.

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 15 ways as a sum of consecutive naturals, for example, 272095 + ... + 273185.

It is an arithmetic number, because the mean of its divisors is an integer number (6696144).

Almost surely, 2^297450240 is an apocalyptic number.

297450240 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 297450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482122368).

297450240 is an abundant number, since it is smaller than the sum of its proper divisors (666794496).

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

297450240 is a wasteful number, since it uses less digits than its factorization.

297450240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 297450240 is about 17246.7457800015. The cubic root of 297450240 is about 667.5310033433.

The spelling of 297450240 in words is "two hundred ninety-seven million, four hundred fifty thousand, two hundred forty".