229436816 has 80 divisors (see below), whose sum is σ = 524966400. Its totient is φ = 97090560.

The previous prime is 229436807. The next prime is 229436821. The reversal of 229436816 is 618634922.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532121 + ... + 532551.

It is an arithmetic number, because the mean of its divisors is an integer number (6562080).

Almost surely, 2^229436816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229436816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262483200).

229436816 is an abundant number, since it is smaller than the sum of its proper divisors (295529584).

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

229436816 is an equidigital number, since it uses as much as digits as its factorization.

229436816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 537 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 229436816 is about 15147.1718812457. The cubic root of 229436816 is about 612.1920737916.

The spelling of 229436816 in words is "two hundred twenty-nine million, four hundred thirty-six thousand, eight hundred sixteen".