229638742 has 16 divisors (see below), whose sum is σ = 347995440. Its totient is φ = 113646592.

The previous prime is 229638697. The next prime is 229638743. The reversal of 229638742 is 247836922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229638743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82038 + ... + 84790.

It is an arithmetic number, because the mean of its divisors is an integer number (21749715).

Almost surely, 2^229638742 is an apocalyptic number.

229638742 is a deficient number, since it is larger than the sum of its proper divisors (118356698).

229638742 is a wasteful number, since it uses less digits than its factorization.

229638742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its digits is 290304, while the sum is 43.

The square root of 229638742 is about 15153.8358840262. The cubic root of 229638742 is about 612.3716166850.

The spelling of 229638742 in words is "two hundred twenty-nine million, six hundred thirty-eight thousand, seven hundred forty-two".