297240 has 32 divisors (see below), whose sum is σ = 892080. Its totient is φ = 79232.

The previous prime is 297233. The next prime is 297247. The reversal of 297240 is 42792.

It is an interprime number because it is at equal distance from previous prime (297233) and next prime (297247).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 297240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 1358.

2²⁹⁷²⁴⁰ is an apocalyptic number.

297240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297240 is an abundant number, since it is smaller than the sum of its proper divisors (594840).

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

297240 is a wasteful number, since it uses less digits than its factorization.

297240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 297240 is about 545.1972120252. The cubic root of 297240 is about 66.7373694347.

The spelling of 297240 in words is "two hundred ninety-seven thousand, two hundred forty".