426057667 has 8 divisors (see below), whose sum is σ = 487084896. Its totient is φ = 365070912.

The previous prime is 426057641. The next prime is 426057673. The reversal of 426057667 is 766750624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426057667 - 2¹⁹ = 425533379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426057617) 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, 17463 + ... + 34015.

It is an arithmetic number, because the mean of its divisors is an integer number (60885612).

Almost surely, 2^426057667 is an apocalyptic number.

426057667 is a deficient number, since it is larger than the sum of its proper divisors (61027229).

426057667 is a wasteful number, since it uses less digits than its factorization.

426057667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20237.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 426057667 is about 20641.1643809161. The cubic root of 426057667 is about 752.4704709111.

The spelling of 426057667 in words is "four hundred twenty-six million, fifty-seven thousand, six hundred sixty-seven".