2004661542 has 32 divisors (see below), whose sum is σ = 4349272032. Its totient is φ = 612313344.

The previous prime is 2004661523. The next prime is 2004661579. The reversal of 2004661542 is 2451664002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83113 + ... + 104484.

It is an arithmetic number, because the mean of its divisors is an integer number (135914751).

Almost surely, 2^2004661542 is an apocalyptic number.

2004661542 is an abundant number, since it is smaller than the sum of its proper divisors (2344610490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2004661542 is a wasteful number, since it uses less digits than its factorization.

2004661542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187752.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2004661542 is about 44773.4468407336. The cubic root of 2004661542 is about 1260.8991528585.

The spelling of 2004661542 in words is "two billion, four million, six hundred sixty-one thousand, five hundred forty-two".