229191042 has 16 divisors (see below), whose sum is σ = 485345952. Its totient is φ = 71903040.

The previous prime is 229191041. The next prime is 229191049. The reversal of 229191042 is 240191922.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (229191041) 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, 1123384 + ... + 1123587.

It is an arithmetic number, because the mean of its divisors is an integer number (30334122).

Almost surely, 2^229191042 is an apocalyptic number.

229191042 is an abundant number, since it is smaller than the sum of its proper divisors (256154910).

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

229191042 is a wasteful number, since it uses less digits than its factorization.

229191042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246993.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 229191042 is about 15139.0568398431. The cubic root of 229191042 is about 611.9734011679.

It can be divided in two parts, 229 and 191042, that added together give a triangular number (191271 = T₆₁₈).

The spelling of 229191042 in words is "two hundred twenty-nine million, one hundred ninety-one thousand, forty-two".