42631226 has 32 divisors (see below), whose sum is σ = 72164736. Its totient is φ = 18720000.

The previous prime is 42631181. The next prime is 42631243. The reversal of 42631226 is 62213624.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42631195 and 42631204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136046 + ... + 136358.

It is an arithmetic number, because the mean of its divisors is an integer number (2255148).

Almost surely, 2^42631226 is an apocalyptic number.

42631226 is a deficient number, since it is larger than the sum of its proper divisors (29533510).

42631226 is a wasteful number, since it uses less digits than its factorization.

42631226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 3456, while the sum is 26.

The square root of 42631226 is about 6529.2592229134. The cubic root of 42631226 is about 349.3354082373.

The spelling of 42631226 in words is "forty-two million, six hundred thirty-one thousand, two hundred twenty-six".