247241730 has 16 divisors (see below), whose sum is σ = 593380224. Its totient is φ = 65931120.

The previous prime is 247241719. The next prime is 247241741. The reversal of 247241730 is 37142742.

It is an interprime number because it is at equal distance from previous prime (247241719) and next prime (247241741).

It is a super-2 number, since 2×247241730² = 122256946106785800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 8241391 = 247241730 / (2 + 4 + 7 + 2 + 4 + 1 + 7 + 3 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120666 + ... + 4120725.

It is an arithmetic number, because the mean of its divisors is an integer number (37086264).

Almost surely, 2^247241730 is an apocalyptic number.

247241730 is an abundant number, since it is smaller than the sum of its proper divisors (346138494).

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

247241730 is a wasteful number, since it uses less digits than its factorization.

247241730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241401.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 247241730 is about 15723.9222206166. The cubic root of 247241730 is about 627.6351502252.

The spelling of 247241730 in words is "two hundred forty-seven million, two hundred forty-one thousand, seven hundred thirty".