426633220 has 96 divisors (see below), whose sum is σ = 1031587200. Its totient is φ = 146893824.

The previous prime is 426633211. The next prime is 426633227. The reversal of 426633220 is 22336624.

It is not an unprimeable number, because it can be changed into a prime (426633227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330336 + ... + 331624.

It is an arithmetic number, because the mean of its divisors is an integer number (10745700).

Almost surely, 2^426633220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426633220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515793600).

426633220 is an abundant number, since it is smaller than the sum of its proper divisors (604953980).

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

426633220 is a wasteful number, since it uses less digits than its factorization.

426633220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 426633220 is about 20655.1015490121. The cubic root of 426633220 is about 752.8091510168.

Adding to 426633220 its reverse (22336624), we get a palindrome (448969844).

The spelling of 426633220 in words is "four hundred twenty-six million, six hundred thirty-three thousand, two hundred twenty".