42222004 has 24 divisors (see below), whose sum is σ = 81932256. Its totient is φ = 18876000.

The previous prime is 42221989. The next prime is 42222023. The reversal of 42222004 is 40022224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5182 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (3413844).

Almost surely, 2^42222004 is an apocalyptic number.

42222004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42222004 is a deficient number, since it is larger than the sum of its proper divisors (39710252).

42222004 is a wasteful number, since it uses less digits than its factorization.

42222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15807 (or 15805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 42222004 is about 6497.8461046719. The cubic root of 42222004 is about 348.2140423664.

Adding to 42222004 its reverse (40022224), we get a palindrome (82244228).

It can be divided in two parts, 4222 and 2004, that added together give a palindrome (6226).

The spelling of 42222004 in words is "forty-two million, two hundred twenty-two thousand, four".