42665230 has 32 divisors (see below), whose sum is σ = 81476928. Its totient is φ = 16051200.

The previous prime is 42665209. The next prime is 42665239. The reversal of 42665230 is 3256624.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42665239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12510 + ... + 15550.

It is an arithmetic number, because the mean of its divisors is an integer number (2546154).

Almost surely, 2^42665230 is an apocalyptic number.

42665230 is a deficient number, since it is larger than the sum of its proper divisors (38811698).

42665230 is a wasteful number, since it uses less digits than its factorization.

42665230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 42665230 is about 6531.8626746128. The cubic root of 42665230 is about 349.4282638382.

It can be divided in two parts, 426 and 65230, that added together give a palindrome (65656).

The spelling of 42665230 in words is "forty-two million, six hundred sixty-five thousand, two hundred thirty".