42668122 has 24 divisors (see below), whose sum is σ = 75129876. Its totient is φ = 18119808.

The previous prime is 42668117. The next prime is 42668123. The reversal of 42668122 is 22186624.

It can be written as a sum of positive squares in 2 ways, for example, as 42653961 + 14161 = 6531^2 + 119^2 .

It is not an unprimeable number, because it can be changed into a prime (42668123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9148 + ... + 13000.

Almost surely, 2^42668122 is an apocalyptic number.

42668122 is a deficient number, since it is larger than the sum of its proper divisors (32461754).

42668122 is a wasteful number, since it uses less digits than its factorization.

42668122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982 (or 3975 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 42668122 is about 6532.0840472241. The cubic root of 42668122 is about 349.4361588205.

The spelling of 42668122 in words is "forty-two million, six hundred sixty-eight thousand, one hundred twenty-two".