220168732 has 48 divisors (see below), whose sum is σ = 464970240. Its totient is φ = 89111232.

The previous prime is 220168723. The next prime is 220168763. The reversal of 220168732 is 237861022.

It is a junction number, because it is equal to n+sod(n) for n = 220168694 and 220168703.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 295953 + ... + 296695.

It is an arithmetic number, because the mean of its divisors is an integer number (9686880).

Almost surely, 2^220168732 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 220168732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232485120).

220168732 is an abundant number, since it is smaller than the sum of its proper divisors (244801508).

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

220168732 is a wasteful number, since it uses less digits than its factorization.

220168732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 220168732 is about 14838.0838385554. The cubic root of 220168732 is about 603.8353680509.

It can be divided in two parts, 220168 and 732, that added together give a square (220900 = 470²).

The spelling of 220168732 in words is "two hundred twenty million, one hundred sixty-eight thousand, seven hundred thirty-two".