2004100642 has 4 divisors (see below), whose sum is σ = 3006150966. Its totient is φ = 1002050320.

The previous prime is 2004100621. The next prime is 2004100643. The reversal of 2004100642 is 2460014002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1156068001 + 848032641 = 34001^2 + 29121^2 .

It is not an unprimeable number, because it can be changed into a prime (2004100643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501025159 + ... + 501025162.

Almost surely, 2^2004100642 is an apocalyptic number.

2004100642 is a deficient number, since it is larger than the sum of its proper divisors (1002050324).

2004100642 is a wasteful number, since it uses less digits than its factorization.

2004100642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002050323.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2004100642 is about 44767.1826453263. The cubic root of 2004100642 is about 1260.7815429292.

Adding to 2004100642 its reverse (2460014002), we get a palindrome (4464114644).

The spelling of 2004100642 in words is "two billion, four million, one hundred thousand, six hundred forty-two".