490804549 has 2 divisors, whose sum is σ = 490804550. Its totient is φ = 490804548.

The previous prime is 490804507. The next prime is 490804553. The reversal of 490804549 is 945408094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362140900 + 128663649 = 19030^2 + 11343^2 .

It is a cyclic number.

It is not a de Polignac number, because 490804549 - 2¹⁵ = 490771781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490804049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245402274 + 245402275.

It is an arithmetic number, because the mean of its divisors is an integer number (245402275).

Almost surely, 2^490804549 is an apocalyptic number.

It is an amenable number.

490804549 is a deficient number, since it is larger than the sum of its proper divisors (1).

490804549 is an equidigital number, since it uses as much as digits as its factorization.

490804549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 490804549 is about 22154.1090770990. The cubic root of 490804549 is about 788.8047668469.

It can be divided in two parts, 4908045 and 49, that added together give a palindrome (4908094).

The spelling of 490804549 in words is "four hundred ninety million, eight hundred four thousand, five hundred forty-nine".