229642004 has 24 divisors (see below), whose sum is σ = 411301800. Its totient is φ = 112146944.

The previous prime is 229641991. The next prime is 229642073. The reversal of 229642004 is 400246922.

It can be written as a sum of positive squares in 4 ways, for example, as 87984400 + 141657604 = 9380^2 + 11902^2 .

It is a super-2 number, since 2×229642004² = 105470900002272032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47072 + ... + 51720.

It is an arithmetic number, because the mean of its divisors is an integer number (17137575).

Almost surely, 2^229642004 is an apocalyptic number.

It is an amenable number.

229642004 is a deficient number, since it is larger than the sum of its proper divisors (181659796).

229642004 is a wasteful number, since it uses less digits than its factorization.

229642004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 229642004 is about 15153.9435131585. The cubic root of 229642004 is about 612.3745162346.

Adding to 229642004 its reverse (400246922), we get a palindrome (629888926).

The spelling of 229642004 in words is "two hundred twenty-nine million, six hundred forty-two thousand, four".