297864490 has 128 divisors (see below), whose sum is σ = 708341760. Its totient is φ = 88165440.

The previous prime is 297864487. The next prime is 297864491. The reversal of 297864490 is 94468792.

297864490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (297864491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2142841 + ... + 2142979.

It is an arithmetic number, because the mean of its divisors is an integer number (5533920).

Almost surely, 2^297864490 is an apocalyptic number.

297864490 is an abundant number, since it is smaller than the sum of its proper divisors (410477270).

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

297864490 is a wasteful number, since it uses less digits than its factorization.

297864490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 297864490 is about 17258.7511135655. The cubic root of 297864490 is about 667.8407430476.

The spelling of 297864490 in words is "two hundred ninety-seven million, eight hundred sixty-four thousand, four hundred ninety".