229520247 has 64 divisors (see below), whose sum is σ = 379261440. Its totient is φ = 121651200.

The previous prime is 229520237. The next prime is 229520267. The reversal of 229520247 is 742025922.

It is not a de Polignac number, because 229520247 - 2⁶ = 229520183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229520227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650023 + ... + 650375.

It is an arithmetic number, because the mean of its divisors is an integer number (5925960).

Almost surely, 2^229520247 is an apocalyptic number.

229520247 is a deficient number, since it is larger than the sum of its proper divisors (149741193).

229520247 is a wasteful number, since it uses less digits than its factorization.

229520247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 229520247 is about 15149.9256433819. The cubic root of 229520247 is about 612.2662693923.

The spelling of 229520247 in words is "two hundred twenty-nine million, five hundred twenty thousand, two hundred forty-seven".