247298530 has 32 divisors (see below), whose sum is σ = 473278464. Its totient is φ = 92828736.

The previous prime is 247298521. The next prime is 247298539. The reversal of 247298530 is 35892742.

It is an interprime number because it is at equal distance from previous prime (247298521) and next prime (247298539).

It is a super-2 number, since 2×247298530² = 122313125880321800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247298539) 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, 2047 + ... + 22333.

It is an arithmetic number, because the mean of its divisors is an integer number (14789952).

Almost surely, 2^247298530 is an apocalyptic number.

247298530 is a deficient number, since it is larger than the sum of its proper divisors (225979934).

247298530 is a wasteful number, since it uses less digits than its factorization.

247298530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 247298530 is about 15725.7282820224. The cubic root of 247298530 is about 627.6832097321.

The spelling of 247298530 in words is "two hundred forty-seven million, two hundred ninety-eight thousand, five hundred thirty".