220542180 has 24 divisors (see below), whose sum is σ = 617518272. Its totient is φ = 58811232.

The previous prime is 220542103. The next prime is 220542181. The reversal of 220542180 is 81245022.

It is a self number, because there is not a number n which added to its sum of digits gives 220542180.

It is not an unprimeable number, because it can be changed into a prime (220542181) 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 7 ways as a sum of consecutive naturals, for example, 1837792 + ... + 1837911.

It is an arithmetic number, because the mean of its divisors is an integer number (25729928).

Almost surely, 2^220542180 is an apocalyptic number.

220542180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220542180 is an abundant number, since it is smaller than the sum of its proper divisors (396976092).

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

220542180 is a wasteful number, since it uses less digits than its factorization.

220542180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675715 (or 3675713 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 220542180 is about 14850.6626114797. The cubic root of 220542180 is about 604.1765817054.

The spelling of 220542180 in words is "two hundred twenty million, five hundred forty-two thousand, one hundred eighty".