426057666 has 16 divisors (see below), whose sum is σ = 852449184. Its totient is φ = 141963584.

The previous prime is 426057641. The next prime is 426057673. The reversal of 426057666 is 666750624.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570 + ... + 29546.

It is an arithmetic number, because the mean of its divisors is an integer number (53278074).

Almost surely, 2^426057666 is an apocalyptic number.

426057666 is an abundant number, since it is smaller than the sum of its proper divisors (426391518).

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

426057666 is a wasteful number, since it uses less digits than its factorization.

426057666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27825.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 426057666 is about 20641.1643566927. The cubic root of 426057666 is about 752.4704703224.

The spelling of 426057666 in words is "four hundred twenty-six million, fifty-seven thousand, six hundred sixty-six".