801625220 has 24 divisors (see below), whose sum is σ = 1836451008. Its totient is φ = 291500000.

The previous prime is 801625211. The next prime is 801625241. The reversal of 801625220 is 22526108.

It is a self number, because there is not a number n which added to its sum of digits gives 801625220.

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, 1821656 + ... + 1822095.

It is an arithmetic number, because the mean of its divisors is an integer number (76518792).

Almost surely, 2^801625220 is an apocalyptic number.

It is an amenable number.

801625220 is an abundant number, since it is smaller than the sum of its proper divisors (1034825788).

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

801625220 is a wasteful number, since it uses less digits than its factorization.

801625220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643771 (or 3643769 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 801625220 is about 28312.9867728574. The cubic root of 801625220 is about 928.9459750911.

The spelling of 801625220 in words is "eight hundred one million, six hundred twenty-five thousand, two hundred twenty".