297285420 has 48 divisors (see below), whose sum is σ = 840657888. Its totient is φ = 78489600.

The previous prime is 297285413. The next prime is 297285421. The reversal of 297285420 is 24582792.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (297285421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18469 + ... + 30588.

It is an arithmetic number, because the mean of its divisors is an integer number (17513706).

Almost surely, 2^297285420 is an apocalyptic number.

297285420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297285420 is an abundant number, since it is smaller than the sum of its proper divisors (543372468).

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

297285420 is a wasteful number, since it uses less digits than its factorization.

297285420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49170 (or 49168 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 297285420 is about 17241.9668251624. The cubic root of 297285420 is about 667.4076854760.

The spelling of 297285420 in words is "two hundred ninety-seven million, two hundred eighty-five thousand, four hundred twenty".