426325221 has 64 divisors (see below), whose sum is σ = 741058560. Its totient is φ = 237219840.

The previous prime is 426325213. The next prime is 426325243. The reversal of 426325221 is 122523624.

It is a happy number.

426325221 is a `hidden beast` number, since 4 + 2 + 632 + 5 + 2 + 21 = 666.

It is not a de Polignac number, because 426325221 - 2³ = 426325213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426325271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1658725 + ... + 1658981.

It is an arithmetic number, because the mean of its divisors is an integer number (11579040).

Almost surely, 2^426325221 is an apocalyptic number.

It is an amenable number.

426325221 is a deficient number, since it is larger than the sum of its proper divisors (314733339).

426325221 is a wasteful number, since it uses less digits than its factorization.

426325221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 426325221 is about 20647.6444419212. The cubic root of 426325221 is about 752.6279490899.

Adding to 426325221 its reverse (122523624), we get a palindrome (548848845).

The spelling of 426325221 in words is "four hundred twenty-six million, three hundred twenty-five thousand, two hundred twenty-one".