426422661 has 16 divisors (see below), whose sum is σ = 650256000. Its totient is φ = 243494208.

The previous prime is 426422651. The next prime is 426422729. The reversal of 426422661 is 166224624.

It is not a de Polignac number, because 426422661 - 2⁵ = 426422629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426422621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25975 + ... + 39083.

It is an arithmetic number, because the mean of its divisors is an integer number (40641000).

Almost surely, 2^426422661 is an apocalyptic number.

It is an amenable number.

426422661 is a deficient number, since it is larger than the sum of its proper divisors (223833339).

426422661 is a wasteful number, since it uses less digits than its factorization.

426422661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668.

The product of its digits is 27648, while the sum is 33.

The square root of 426422661 is about 20650.0038983047. The cubic root of 426422661 is about 752.6852844114.

The spelling of 426422661 in words is "four hundred twenty-six million, four hundred twenty-two thousand, six hundred sixty-one".