229347072 has 72 divisors (see below), whose sum is σ = 678240080. Its totient is φ = 76446720.

The previous prime is 229347067. The next prime is 229347073. The reversal of 229347072 is 270743922.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229347073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9679 + ... + 23502.

Almost surely, 2^229347072 is an apocalyptic number.

It is an amenable number.

229347072 is an abundant number, since it is smaller than the sum of its proper divisors (448893008).

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

229347072 is an equidigital number, since it uses as much as digits as its factorization.

229347072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33206 (or 33186 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 229347072 is about 15144.2091903143. The cubic root of 229347072 is about 612.1122439263.

The spelling of 229347072 in words is "two hundred twenty-nine million, three hundred forty-seven thousand, seventy-two".