229878645 has 32 divisors (see below), whose sum is σ = 384417792. Its totient is φ = 117187392.

The previous prime is 229878643. The next prime is 229878647. The reversal of 229878645 is 546878922.

It is an interprime number because it is at equal distance from previous prime (229878643) and next prime (229878647).

It is not a de Polignac number, because 229878645 - 2¹ = 229878643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229878643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26524 + ... + 34106.

It is an arithmetic number, because the mean of its divisors is an integer number (12013056).

Almost surely, 2^229878645 is an apocalyptic number.

It is an amenable number.

229878645 is a deficient number, since it is larger than the sum of its proper divisors (154539147).

229878645 is a wasteful number, since it uses less digits than its factorization.

229878645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681.

The product of its digits is 1935360, while the sum is 51.

The square root of 229878645 is about 15161.7494043399. The cubic root of 229878645 is about 612.5847901498.

The spelling of 229878645 in words is "two hundred twenty-nine million, eight hundred seventy-eight thousand, six hundred forty-five".