297930240 has 240 divisors, whose sum is σ = 1052642448. Its totient is φ = 77856768.

The previous prime is 297930239. The next prime is 297930289. The reversal of 297930240 is 42039792.

297930240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 297930195 and 297930204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1543584 + ... + 1543776.

Almost surely, 2^297930240 is an apocalyptic number.

297930240 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 297930240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526321224).

297930240 is an abundant number, since it is smaller than the sum of its proper divisors (754712208).

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

297930240 is a wasteful number, since it uses less digits than its factorization.

297930240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 297930240 is about 17260.6558392200. The cubic root of 297930240 is about 667.8898787003.

The spelling of 297930240 in words is "two hundred ninety-seven million, nine hundred thirty thousand, two hundred forty".