801412218 has 20 divisors (see below), whose sum is σ = 1795757370. Its totient is φ = 267137352.

The previous prime is 801412211. The next prime is 801412219. The reversal of 801412218 is 812214108.

It can be written as a sum of positive squares in only one way, i.e., 732405969 + 69006249 = 27063^2 + 8307^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 801412191 and 801412200.

It is not an unprimeable number, because it can be changed into a prime (801412211) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2473333 + ... + 2473656.

Almost surely, 2^801412218 is an apocalyptic number.

801412218 is an abundant number, since it is smaller than the sum of its proper divisors (994345152).

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

801412218 is a wasteful number, since it uses less digits than its factorization.

801412218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947003 (or 4946994 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 801412218 is about 28309.2249628986. The cubic root of 801412218 is about 928.8636902222.

The spelling of 801412218 in words is "eight hundred one million, four hundred twelve thousand, two hundred eighteen".