490540801 has 8 divisors (see below), whose sum is σ = 497904264. Its totient is φ = 483194880.

The previous prime is 490540781. The next prime is 490540819. The reversal of 490540801 is 108045094.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 159264400 + 331276401 = 12620^2 + 18201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 490540801 - 2¹⁵ = 490508033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490541801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58641 + ... + 66481.

It is an arithmetic number, because the mean of its divisors is an integer number (62238033).

Almost surely, 2^490540801 is an apocalyptic number.

It is an amenable number.

490540801 is a deficient number, since it is larger than the sum of its proper divisors (7363463).

490540801 is an equidigital number, since it uses as much as digits as its factorization.

490540801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 490540801 is about 22148.1557019992. The cubic root of 490540801 is about 788.6634458549.

Adding to 490540801 its reverse (108045094), we get a palindrome (598585895).

The spelling of 490540801 in words is "four hundred ninety million, five hundred forty thousand, eight hundred one".