42206630 has 32 divisors (see below), whose sum is σ = 78599808. Its totient is φ = 16307200.

The previous prime is 42206627. The next prime is 42206639. The reversal of 42206630 is 3660224.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42206596 and 42206605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42206639) 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, 45875 + ... + 46785.

It is an arithmetic number, because the mean of its divisors is an integer number (2456244).

Almost surely, 2^42206630 is an apocalyptic number.

42206630 is a deficient number, since it is larger than the sum of its proper divisors (36393178).

42206630 is a wasteful number, since it uses less digits than its factorization.

42206630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 42206630 is about 6496.6629895663. The cubic root of 42206630 is about 348.1717729960.

Adding to 42206630 its reverse (3660224), we get a palindrome (45866854).

The spelling of 42206630 in words is "forty-two million, two hundred six thousand, six hundred thirty".