27223020 has 96 divisors (see below), whose sum is σ = 92413440. Its totient is φ = 6598080.

The previous prime is 27222997. The next prime is 27223037. The reversal of 27223020 is 2032272.

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

It is a junction number, because it is equal to n+sod(n) for n = 27222984 and 27223002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3649 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (962640).

Almost surely, 2^27223020 is an apocalyptic number.

27223020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46206720).

27223020 is an abundant number, since it is smaller than the sum of its proper divisors (65190420).

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

27223020 is a wasteful number, since it uses less digits than its factorization.

27223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 27223020 is about 5217.5683991683. The cubic root of 27223020 is about 300.8237361258.

Adding to 27223020 its reverse (2032272), we get a palindrome (29255292).

The spelling of 27223020 in words is "twenty-seven million, two hundred twenty-three thousand, twenty".