229495728 has 160 divisors (see below), whose sum is σ = 763379712. Its totient is φ = 57657600.

The previous prime is 229495723. The next prime is 229495729. The reversal of 229495728 is 827594922.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (229495723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113575 + ... + 115577.

Almost surely, 2^229495728 is an apocalyptic number.

229495728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229495728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381689856).

229495728 is an abundant number, since it is smaller than the sum of its proper divisors (533883984).

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

229495728 is a wasteful number, since it uses less digits than its factorization.

229495728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2057 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 229495728 is about 15149.1164098768. The cubic root of 229495728 is about 612.2444663903.

The spelling of 229495728 in words is "two hundred twenty-nine million, four hundred ninety-five thousand, seven hundred twenty-eight".