2174420220 has 192 divisors, whose sum is σ = 7230504960. Its totient is φ = 477934848.

The previous prime is 2174420113. The next prime is 2174420233. The reversal of 2174420220 is 220244712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1163727 + ... + 1165593.

It is an arithmetic number, because the mean of its divisors is an integer number (37658880).

Almost surely, 2^2174420220 is an apocalyptic number.

2174420220 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 2174420220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3615252480).

2174420220 is an abundant number, since it is smaller than the sum of its proper divisors (5056084740).

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

2174420220 is a wasteful number, since it uses less digits than its factorization.

2174420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 2174420220 is about 46630.6789570986. The cubic root of 2174420220 is about 1295.5310493737.

Adding to 2174420220 its reverse (220244712), we get a palindrome (2394664932).

The spelling of 2174420220 in words is "two billion, one hundred seventy-four million, four hundred twenty thousand, two hundred twenty".