220169740 has 144 divisors (see below), whose sum is σ = 569963520. Its totient is φ = 71124480.

The previous prime is 220169717. The next prime is 220169743. The reversal of 220169740 is 47961022.

It is not an unprimeable number, because it can be changed into a prime (220169743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1733557 + ... + 1733683.

It is an arithmetic number, because the mean of its divisors is an integer number (3958080).

Almost surely, 2^220169740 is an apocalyptic number.

220169740 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 220169740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284981760).

220169740 is an abundant number, since it is smaller than the sum of its proper divisors (349793780).

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

220169740 is a wasteful number, since it uses less digits than its factorization.

220169740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 220169740 is about 14838.1178051665. The cubic root of 220169740 is about 603.8362895640.

The spelling of 220169740 in words is "two hundred twenty million, one hundred sixty-nine thousand, seven hundred forty".