20227704 has 64 divisors (see below), whose sum is σ = 60844800. Its totient is φ = 5474304.

The previous prime is 20227693. The next prime is 20227709. The reversal of 20227704 is 40772202.

It is a super-2 number, since 2×20227704² = 818320018223232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20227709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (950700).

Almost surely, 2^20227704 is an apocalyptic number.

20227704 is a gapful number since it is divisible by the number (24) 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 20227704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30422400).

20227704 is an abundant number, since it is smaller than the sum of its proper divisors (40617096).

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

20227704 is a wasteful number, since it uses less digits than its factorization.

20227704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20227704 is about 4497.5219843821. The cubic root of 20227704 is about 272.4680163343.

Adding to 20227704 its reverse (40772202), we get a palindrome (60999906).

The spelling of 20227704 in words is "twenty million, two hundred twenty-seven thousand, seven hundred four".