229622718 has 32 divisors (see below), whose sum is σ = 498153600. Its totient is φ = 70141536.

The previous prime is 229622713. The next prime is 229622821. The reversal of 229622718 is 817226922.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229622711) 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 15 ways as a sum of consecutive naturals, for example, 253 + ... + 21431.

It is an arithmetic number, because the mean of its divisors is an integer number (15567300).

Almost surely, 2^229622718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229622718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249076800).

229622718 is an abundant number, since it is smaller than the sum of its proper divisors (268530882).

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

229622718 is a wasteful number, since it uses less digits than its factorization.

229622718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21336.

The product of its digits is 48384, while the sum is 39.

The square root of 229622718 is about 15153.3071637844. The cubic root of 229622718 is about 612.3573727600.

The spelling of 229622718 in words is "two hundred twenty-nine million, six hundred twenty-two thousand, seven hundred eighteen".