426666042 has 40 divisors (see below), whose sum is σ = 1042965792. Its totient is φ = 129292200.

The previous prime is 426666041. The next prime is 426666061. The reversal of 426666042 is 240666624.

It is a super-2 number, since 2×426666042² = 364087822791891528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 426665988 and 426666006.

It is not an unprimeable number, because it can be changed into a prime (426666041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117934 + ... + 121497.

Almost surely, 2^426666042 is an apocalyptic number.

426666042 is an abundant number, since it is smaller than the sum of its proper divisors (616299750).

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

426666042 is a wasteful number, since it uses less digits than its factorization.

426666042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239456 (or 239447 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 426666042 is about 20655.8960589949. The cubic root of 426666042 is about 752.8284557085.

The spelling of 426666042 in words is "four hundred twenty-six million, six hundred sixty-six thousand, forty-two".