220244542 has 16 divisors (see below), whose sum is σ = 397434240. Its totient is φ = 89422488.

The previous prime is 220244509. The next prime is 220244603. The reversal of 220244542 is 245442022.

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 7 ways as a sum of consecutive naturals, for example, 413728 + ... + 414259.

It is an arithmetic number, because the mean of its divisors is an integer number (24839640).

Almost surely, 2^220244542 is an apocalyptic number.

220244542 is a deficient number, since it is larger than the sum of its proper divisors (177189698).

220244542 is a wasteful number, since it uses less digits than its factorization.

220244542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828015.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 220244542 is about 14840.6381938244. The cubic root of 220244542 is about 603.9046656691.

Adding to 220244542 its reverse (245442022), we get a palindrome (465686564).

The spelling of 220244542 in words is "two hundred twenty million, two hundred forty-four thousand, five hundred forty-two".