2004451 has 4 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 1935304.

The previous prime is 2004433. The next prime is 2004461. The reversal of 2004451 is 1544002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1544002 = 2 ⋅772001.

It is a cyclic number.

It is not a de Polignac number, because 2004451 - 2¹⁷ = 1873379 is a prime.

It is a super-2 number, since 2×2004451² = 8035647622802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34531 + ... + 34588.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

2^2004451 is an apocalyptic number.

2004451 is a deficient number, since it is larger than the sum of its proper divisors (69149).

2004451 is an equidigital number, since it uses as much as digits as its factorization.

2004451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69148.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2004451 is about 1415.7863539390. The cubic root of 2004451 is about 126.0855008827.

Adding to 2004451 its reverse (1544002), we get a palindrome (3548453).

The spelling of 2004451 in words is "two million, four thousand, four hundred fifty-one".