2004321992 has 8 divisors (see below), whose sum is σ = 3758103750. Its totient is φ = 1002160992.

The previous prime is 2004321983. The next prime is 2004321997. The reversal of 2004321992 is 2991234002.

It can be written as a sum of positive squares in only one way, i.e., 1863994276 + 140327716 = 43174^2 + 11846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2004321992² = 8034613295229696128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2004321997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125270117 + ... + 125270132.

Almost surely, 2^2004321992 is an apocalyptic number.

It is an amenable number.

2004321992 is a deficient number, since it is larger than the sum of its proper divisors (1753781758).

2004321992 is a wasteful number, since it uses less digits than its factorization.

2004321992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250540255 (or 250540251 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2004321992 is about 44769.6548121604. The cubic root of 2004321992 is about 1260.8279583828.

Adding to 2004321992 its reverse (2991234002), we get a palindrome (4995555994).

The spelling of 2004321992 in words is "two billion, four million, three hundred twenty-one thousand, nine hundred ninety-two".