247752230 has 32 divisors (see below), whose sum is σ = 487185408. Its totient is φ = 89964000.

The previous prime is 247752221. The next prime is 247752233. The reversal of 247752230 is 32257742.

It is a super-2 number, since 2×247752230² = 122762334939945800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247752233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 114539 + ... + 116681.

It is an arithmetic number, because the mean of its divisors is an integer number (15224544).

Almost surely, 2^247752230 is an apocalyptic number.

247752230 is a deficient number, since it is larger than the sum of its proper divisors (239433178).

247752230 is a wasteful number, since it uses less digits than its factorization.

247752230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 247752230 is about 15740.1470768224. The cubic root of 247752230 is about 628.0668296089.

The spelling of 247752230 in words is "two hundred forty-seven million, seven hundred fifty-two thousand, two hundred thirty".