490740804 has 18 divisors (see below), whose sum is σ = 1240483790. Its totient is φ = 163580256.

The previous prime is 490740799. The next prime is 490740823. The reversal of 490740804 is 408047094.

It can be written as a sum of positive squares in only one way, i.e., 384238404 + 106502400 = 19602^2 + 10320^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 13631689 = 490740804 / (4 + 9 + 0 + 7 + 4 + 0 + 8 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6815809 + ... + 6815880.

Almost surely, 2^490740804 is an apocalyptic number.

It is an amenable number.

490740804 is an abundant number, since it is smaller than the sum of its proper divisors (749742986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490740804 is a wasteful number, since it uses less digits than its factorization.

490740804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13631699 (or 13631694 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 490740804 is about 22152.6703582209. The cubic root of 490740804 is about 788.7706157529.

Adding to 490740804 its reverse (408047094), we get a palindrome (898787898).

The spelling of 490740804 in words is "four hundred ninety million, seven hundred forty thousand, eight hundred four".