229712478 has 8 divisors (see below), whose sum is σ = 459424968. Its totient is φ = 76570824.

The previous prime is 229712459. The next prime is 229712479. The reversal of 229712478 is 874217922.

229712478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

229712478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229712479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19142701 + ... + 19142712.

It is an arithmetic number, because the mean of its divisors is an integer number (57428121).

Almost surely, 2^229712478 is an apocalyptic number.

229712478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

229712478 is a wasteful number, since it uses less digits than its factorization.

229712478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38285418.

The product of its digits is 112896, while the sum is 42.

The square root of 229712478 is about 15156.2686041123. The cubic root of 229712478 is about 612.4371529575.

The spelling of 229712478 in words is "two hundred twenty-nine million, seven hundred twelve thousand, four hundred seventy-eight".