801641220 has 24 divisors (see below), whose sum is σ = 2244595584. Its totient is φ = 213770976.

The previous prime is 801641219. The next prime is 801641231. The reversal of 801641220 is 22146108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6680284 + ... + 6680403.

It is an arithmetic number, because the mean of its divisors is an integer number (93524816).

Almost surely, 2^801641220 is an apocalyptic number.

It is an amenable number.

801641220 is an abundant number, since it is smaller than the sum of its proper divisors (1442954364).

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

801641220 is a wasteful number, since it uses less digits than its factorization.

801641220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13360699 (or 13360697 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 801641220 is about 28313.2693272960. The cubic root of 801641220 is about 928.9521554675.

Adding to 801641220 its reverse (22146108), we get a palindrome (823787328).

The spelling of 801641220 in words is "eight hundred one million, six hundred forty-one thousand, two hundred twenty".