42408068 has 12 divisors (see below), whose sum is σ = 76220172. Its totient is φ = 20630880.

The previous prime is 42408061. The next prime is 42408073. The reversal of 42408068 is 86080424.

It can be written as a sum of positive squares in 2 ways, for example, as 34668544 + 7739524 = 5888^2 + 2782^2 .

It is not an unprimeable number, because it can be changed into a prime (42408061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143123 + ... + 143418.

It is an arithmetic number, because the mean of its divisors is an integer number (6351681).

Almost surely, 2^42408068 is an apocalyptic number.

It is an amenable number.

42408068 is a deficient number, since it is larger than the sum of its proper divisors (33812104).

42408068 is a wasteful number, since it uses less digits than its factorization.

42408068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286582 (or 286580 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42408068 is about 6512.1477255971. The cubic root of 42408068 is about 348.7247962499.

The spelling of 42408068 in words is "forty-two million, four hundred eight thousand, sixty-eight".