426206321 has 8 divisors (see below), whose sum is σ = 440212224. Its totient is φ = 412216560.

The previous prime is 426206251. The next prime is 426206323. The reversal of 426206321 is 123602624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426206321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (426206323) 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, 73691 + ... + 79263.

It is an arithmetic number, because the mean of its divisors is an integer number (55026528).

Almost surely, 2^426206321 is an apocalyptic number.

It is an amenable number.

426206321 is a deficient number, since it is larger than the sum of its proper divisors (14005903).

426206321 is a wasteful number, since it uses less digits than its factorization.

426206321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 426206321 is about 20644.7649780762. The cubic root of 426206321 is about 752.5579745108.

Adding to 426206321 its reverse (123602624), we get a palindrome (549808945).

The spelling of 426206321 in words is "four hundred twenty-six million, two hundred six thousand, three hundred twenty-one".