227021004 has 72 divisors (see below), whose sum is σ = 657296640. Its totient is φ = 64719072.

The previous prime is 227020999. The next prime is 227021023. The reversal of 227021004 is 400120722.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171457 + ... + 172775.

It is an arithmetic number, because the mean of its divisors is an integer number (9129120).

Almost surely, 2^227021004 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 227021004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328648320).

227021004 is an abundant number, since it is smaller than the sum of its proper divisors (430275636).

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

227021004 is a wasteful number, since it uses less digits than its factorization.

227021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 227021004 is about 15067.2161994179. The cubic root of 227021004 is about 610.0358341396.

Adding to 227021004 its reverse (400120722), we get a palindrome (627141726).

The spelling of 227021004 in words is "two hundred twenty-seven million, twenty-one thousand, four".