801236220 has 96 divisors (see below), whose sum is σ = 2294853120. Its totient is φ = 208815360.

The previous prime is 801236209. The next prime is 801236237. The reversal of 801236220 is 22632108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654529 + ... + 655751.

It is an arithmetic number, because the mean of its divisors is an integer number (23904720).

Almost surely, 2^801236220 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 801236220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147426560).

801236220 is an abundant number, since it is smaller than the sum of its proper divisors (1493616900).

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

801236220 is a wasteful number, since it uses less digits than its factorization.

801236220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 801236220 is about 28306.1163001921. The cubic root of 801236220 is about 928.7956893787.

Adding to 801236220 its reverse (22632108), we get a palindrome (823868328).

The spelling of 801236220 in words is "eight hundred one million, two hundred thirty-six thousand, two hundred twenty".