220443442 has 32 divisors (see below), whose sum is σ = 351993600. Its totient is φ = 103369728.

The previous prime is 220443389. The next prime is 220443463. The reversal of 220443442 is 244344022.

220443442 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220443442² = 97190622241614728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525909 + ... + 526327.

It is an arithmetic number, because the mean of its divisors is an integer number (10999800).

Almost surely, 2^220443442 is an apocalyptic number.

220443442 is a deficient number, since it is larger than the sum of its proper divisors (131550158).

220443442 is a wasteful number, since it uses less digits than its factorization.

220443442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 220443442 is about 14847.3378758618. The cubic root of 220443442 is about 604.0864038051.

Adding to 220443442 its reverse (244344022), we get a palindrome (464787464).

The spelling of 220443442 in words is "two hundred twenty million, four hundred forty-three thousand, four hundred forty-two".