229601918 has 16 divisors (see below), whose sum is σ = 423880800. Its totient is φ = 90831456.

The previous prime is 229601917. The next prime is 229601929. The reversal of 229601918 is 819106922.

It is a super-4 number, since 4×229601918⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229601917) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 630593 + ... + 630956.

It is an arithmetic number, because the mean of its divisors is an integer number (26492550).

Almost surely, 2^229601918 is an apocalyptic number.

229601918 is a deficient number, since it is larger than the sum of its proper divisors (194278882).

229601918 is a wasteful number, since it uses less digits than its factorization.

229601918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261571.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 229601918 is about 15152.6208294143. The cubic root of 229601918 is about 612.3388824032.

The spelling of 229601918 in words is "two hundred twenty-nine million, six hundred one thousand, nine hundred eighteen".