247140330 has 16 divisors (see below), whose sum is σ = 593136864. Its totient is φ = 65904080.

The previous prime is 247140329. The next prime is 247140337. The reversal of 247140330 is 33041742.

It is a super-2 number, since 2×247140330² = 122156685425017800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247140330.

It is not an unprimeable number, because it can be changed into a prime (247140337) 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, 4118976 + ... + 4119035.

It is an arithmetic number, because the mean of its divisors is an integer number (37071054).

Almost surely, 2^247140330 is an apocalyptic number.

247140330 is an abundant number, since it is smaller than the sum of its proper divisors (345996534).

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

247140330 is a wasteful number, since it uses less digits than its factorization.

247140330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238021.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 247140330 is about 15720.6975036097. The cubic root of 247140330 is about 627.5493355495.

The spelling of 247140330 in words is "two hundred forty-seven million, one hundred forty thousand, three hundred thirty".