42912226 has 8 divisors (see below), whose sum is σ = 73563840. Its totient is φ = 18390948.

The previous prime is 42912223. The next prime is 42912239. The reversal of 42912226 is 62221924.

42912226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×42912226³ (a number of 24 digits) contains 333 as substring.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 42912194 and 42912203.

It is not an unprimeable number, because it can be changed into a prime (42912223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532566 + ... + 1532593.

It is an arithmetic number, because the mean of its divisors is an integer number (9195480).

Almost surely, 2^42912226 is an apocalyptic number.

42912226 is a deficient number, since it is larger than the sum of its proper divisors (30651614).

42912226 is a wasteful number, since it uses less digits than its factorization.

42912226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065168.

The product of its digits is 3456, while the sum is 28.

The square root of 42912226 is about 6550.7424006749. The cubic root of 42912226 is about 350.1012659359.

The spelling of 42912226 in words is "forty-two million, nine hundred twelve thousand, two hundred twenty-six".