2004720451 has 2 divisors, whose sum is σ = 2004720452. Its totient is φ = 2004720450.

The previous prime is 2004720397. The next prime is 2004720481. The reversal of 2004720451 is 1540274002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2004720451 - 2⁹ = 2004719939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004720481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002360225 + 1002360226.

It is an arithmetic number, because the mean of its divisors is an integer number (1002360226).

Almost surely, 2^2004720451 is an apocalyptic number.

2004720451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004720451 is an equidigital number, since it uses as much as digits as its factorization.

2004720451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 2004720451 is about 44774.1046923330. The cubic root of 2004720451 is about 1260.9115036683.

Adding to 2004720451 its reverse (1540274002), we get a palindrome (3544994453).

The spelling of 2004720451 in words is "two billion, four million, seven hundred twenty thousand, four hundred fifty-one".