42211668 has 24 divisors (see below), whose sum is σ = 100164960. Its totient is φ = 13831840.

The previous prime is 42211657. The next prime is 42211669. The reversal of 42211668 is 86611224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42211669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29103 + ... + 30518.

It is an arithmetic number, because the mean of its divisors is an integer number (4173540).

Almost surely, 2^42211668 is an apocalyptic number.

It is an amenable number.

42211668 is an abundant number, since it is smaller than the sum of its proper divisors (57953292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42211668 is a wasteful number, since it uses less digits than its factorization.

42211668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59687 (or 59685 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 42211668 is about 6497.0507155170. The cubic root of 42211668 is about 348.1856256348.

It can be divided in two parts, 4221 and 1668, that multiplied together give a triangular number (7040628 = T₃₇₅₂).

The spelling of 42211668 in words is "forty-two million, two hundred eleven thousand, six hundred sixty-eight".