297249340 has 24 divisors (see below), whose sum is σ = 634459392. Its totient is φ = 116950080.

The previous prime is 297249313. The next prime is 297249341. The reversal of 297249340 is 43942792.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 297249293 and 297249302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297249341) 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, 120604 + ... + 123043.

It is an arithmetic number, because the mean of its divisors is an integer number (26435808).

Almost surely, 2^297249340 is an apocalyptic number.

297249340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297249340 is an abundant number, since it is smaller than the sum of its proper divisors (337210052).

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

297249340 is a wasteful number, since it uses less digits than its factorization.

297249340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243717 (or 243715 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 297249340 is about 17240.9205090680. The cubic root of 297249340 is about 667.3806844394.

The spelling of 297249340 in words is "two hundred ninety-seven million, two hundred forty-nine thousand, three hundred forty".