247489330 has 32 divisors (see below), whose sum is σ = 495160128. Its totient is φ = 88296000.

The previous prime is 247489321. The next prime is 247489339. The reversal of 247489330 is 33984742.

It is an interprime number because it is at equal distance from previous prime (247489321) and next prime (247489339).

It is a super-2 number, since 2×247489330² = 122501936927697800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247489339) 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, 15396 + ... + 27055.

It is an arithmetic number, because the mean of its divisors is an integer number (15473754).

Almost surely, 2^247489330 is an apocalyptic number.

247489330 is an abundant number, since it is smaller than the sum of its proper divisors (247670798).

247489330 is a wasteful number, since it uses less digits than its factorization.

247489330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42522.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 247489330 is about 15731.7936040364. The cubic root of 247489330 is about 627.8445952033.

The spelling of 247489330 in words is "two hundred forty-seven million, four hundred eighty-nine thousand, three hundred thirty".