2204542642 has 8 divisors (see below), whose sum is σ = 3307056300. Its totient is φ = 1102190544.

The previous prime is 2204542631. The next prime is 2204542657. The reversal of 2204542642 is 2462454022.

It can be written as a sum of positive squares in 2 ways, for example, as 2091141441 + 113401201 = 45729^2 + 10649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084 + ... + 66472.

Almost surely, 2^2204542642 is an apocalyptic number.

2204542642 is a deficient number, since it is larger than the sum of its proper divisors (1102513658).

2204542642 is a wasteful number, since it uses less digits than its factorization.

2204542642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80780.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 2204542642 is about 46952.5573531411. The cubic root of 2204542642 is about 1301.4860013292.

Adding to 2204542642 its reverse (2462454022), we get a palindrome (4666996664).

The spelling of 2204542642 in words is "two billion, two hundred four million, five hundred forty-two thousand, six hundred forty-two".