220281474 has 64 divisors (see below), whose sum is σ = 522289152. Its totient is φ = 60609600.

The previous prime is 220281463. The next prime is 220281533. The reversal of 220281474 is 474182022.

It is a super-2 number, since 2×220281474² = 97047855575225352, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477604 + ... + 478064.

It is an arithmetic number, because the mean of its divisors is an integer number (8160768).

Almost surely, 2^220281474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220281474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261144576).

220281474 is an abundant number, since it is smaller than the sum of its proper divisors (302007678).

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

220281474 is a wasteful number, since it uses less digits than its factorization.

220281474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 220281474 is about 14841.8824277785. The cubic root of 220281474 is about 603.9384193025.

The spelling of 220281474 in words is "two hundred twenty million, two hundred eighty-one thousand, four hundred seventy-four".