229528805 has 32 divisors (see below), whose sum is σ = 313417728. Its totient is φ = 159854400.

The previous prime is 229528769. The next prime is 229528807. The reversal of 229528805 is 508825922.

It is not a de Polignac number, because 229528805 - 2²⁶ = 162419941 is a prime.

It is a super-3 number, since 3×229528805³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229528807) 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, 174962 + ... + 176268.

It is an arithmetic number, because the mean of its divisors is an integer number (9794304).

Almost surely, 2^229528805 is an apocalyptic number.

It is an amenable number.

229528805 is a deficient number, since it is larger than the sum of its proper divisors (83888923).

229528805 is a wasteful number, since it uses less digits than its factorization.

229528805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 229528805 is about 15150.2080843796. The cubic root of 229528805 is about 612.2738790472.

The spelling of 229528805 in words is "two hundred twenty-nine million, five hundred twenty-eight thousand, eight hundred five".