801863220 has 24 divisors (see below), whose sum is σ = 2245217184. Its totient is φ = 213830176.

The previous prime is 801863219. The next prime is 801863221. The reversal of 801863220 is 22368108.

It is an interprime number because it is at equal distance from previous prime (801863219) and next prime (801863221).

It is a super-3 number, since 3×801863220³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801863221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6682134 + ... + 6682253.

It is an arithmetic number, because the mean of its divisors is an integer number (93550716).

Almost surely, 2^801863220 is an apocalyptic number.

It is an amenable number.

801863220 is an abundant number, since it is smaller than the sum of its proper divisors (1443353964).

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

801863220 is a wasteful number, since it uses less digits than its factorization.

801863220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13364399 (or 13364397 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 801863220 is about 28317.1894791838. The cubic root of 801863220 is about 929.0378997045.

The spelling of 801863220 in words is "eight hundred one million, eight hundred sixty-three thousand, two hundred twenty".