229919972 has 12 divisors (see below), whose sum is σ = 403814460. Its totient is φ = 114544416.

The previous prime is 229919959. The next prime is 229919981. The reversal of 229919972 is 279919922.

It is a happy number.

229919972 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 152374336 + 77545636 = 12344^2 + 8806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 229919972.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102647 + ... + 104862.

It is an arithmetic number, because the mean of its divisors is an integer number (33651205).

Almost surely, 2^229919972 is an apocalyptic number.

It is an amenable number.

229919972 is a deficient number, since it is larger than the sum of its proper divisors (173894488).

229919972 is a wasteful number, since it uses less digits than its factorization.

229919972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207790 (or 207788 counting only the distinct ones).

The product of its digits is 367416, while the sum is 50.

The square root of 229919972 is about 15163.1122135266. The cubic root of 229919972 is about 612.6214975970.

Subtracting from 229919972 its sum of digits (50), we obtain a palindrome (229919922).

The spelling of 229919972 in words is "two hundred twenty-nine million, nine hundred nineteen thousand, nine hundred seventy-two".