533642220 has 72 divisors (see below), whose sum is σ = 1636951680. Its totient is φ = 140701440.

The previous prime is 533642149. The next prime is 533642273. The reversal of 533642220 is 22246335.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636 + ... + 32675.

It is an arithmetic number, because the mean of its divisors is an integer number (22735440).

Almost surely, 2^533642220 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 533642220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818475840).

533642220 is an abundant number, since it is smaller than the sum of its proper divisors (1103309460).

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

533642220 is a wasteful number, since it uses less digits than its factorization.

533642220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33415 (or 33410 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 533642220 is about 23100.6973920702. The cubic root of 533642220 is about 811.1167951201.

Adding to 533642220 its reverse (22246335), we get a palindrome (555888555).

The spelling of 533642220 in words is "five hundred thirty-three million, six hundred forty-two thousand, two hundred twenty".