220771442 has 16 divisors (see below), whose sum is σ = 335625120. Its totient is φ = 108902112.

The previous prime is 220771433. The next prime is 220771459. The reversal of 220771442 is 244177022.

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, 99113 + ... + 101315.

It is an arithmetic number, because the mean of its divisors is an integer number (20976570).

Almost surely, 2^220771442 is an apocalyptic number.

220771442 is a deficient number, since it is larger than the sum of its proper divisors (114853678).

220771442 is a wasteful number, since it uses less digits than its factorization.

220771442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 220771442 is about 14858.3795213341. The cubic root of 220771442 is about 604.3858640629.

The spelling of 220771442 in words is "two hundred twenty million, seven hundred seventy-one thousand, four hundred forty-two".