229718445 has 16 divisors (see below), whose sum is σ = 400963392. Its totient is φ = 111378560.

The previous prime is 229718393. The next prime is 229718471. The reversal of 229718445 is 544817922.

It is not a de Polignac number, because 229718445 - 2⁶ = 229718381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229718397 and 229718406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695952 + ... + 696281.

It is an arithmetic number, because the mean of its divisors is an integer number (25060212).

Almost surely, 2^229718445 is an apocalyptic number.

It is an amenable number.

229718445 is a deficient number, since it is larger than the sum of its proper divisors (171244947).

229718445 is a wasteful number, since it uses less digits than its factorization.

229718445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392252.

The product of its digits is 161280, while the sum is 42.

The square root of 229718445 is about 15156.4654520769. The cubic root of 229718445 is about 612.4424557906.

The spelling of 229718445 in words is "two hundred twenty-nine million, seven hundred eighteen thousand, four hundred forty-five".