220981260 has 24 divisors (see below), whose sum is σ = 618747696. Its totient is φ = 58928320.

The previous prime is 220981199. The next prime is 220981273. The reversal of 220981260 is 62189022.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 1841451 + ... + 1841570.

It is an arithmetic number, because the mean of its divisors is an integer number (25781154).

Almost surely, 2^220981260 is an apocalyptic number.

220981260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220981260 is an abundant number, since it is smaller than the sum of its proper divisors (397766436).

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

220981260 is a wasteful number, since it uses less digits than its factorization.

220981260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683033 (or 3683031 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 220981260 is about 14865.4384395483. The cubic root of 220981260 is about 604.5772699805.

The spelling of 220981260 in words is "two hundred twenty million, nine hundred eighty-one thousand, two hundred sixty".