247224285 has 128 divisors (see below), whose sum is σ = 580608000. Its totient is φ = 96629760.

The previous prime is 247224233. The next prime is 247224293. The reversal of 247224285 is 582422742.

It is not a de Polignac number, because 247224285 - 2⁶ = 247224221 is a prime.

It is a super-2 number, since 2×247224285² = 122239694187522450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 176016 + ... + 177414.

It is an arithmetic number, because the mean of its divisors is an integer number (4536000).

Almost surely, 2^247224285 is an apocalyptic number.

It is an amenable number.

247224285 is an abundant number, since it is smaller than the sum of its proper divisors (333383715).

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

247224285 is a wasteful number, since it uses less digits than its factorization.

247224285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 1442 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 247224285 is about 15723.3674828263. The cubic root of 247224285 is about 627.6203882178.

The spelling of 247224285 in words is "two hundred forty-seven million, two hundred twenty-four thousand, two hundred eighty-five".