490592644 has 6 divisors (see below), whose sum is σ = 858537134. Its totient is φ = 245296320.

The previous prime is 490592629. The next prime is 490592651. The reversal of 490592644 is 446295094.

It can be written as a sum of positive squares in only one way, i.e., 421070400 + 69522244 = 20520^2 + 8338^2 .

It is a super-2 number, since 2×490592644² = 481362284693821472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 490592644.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61324077 + ... + 61324084.

Almost surely, 2^490592644 is an apocalyptic number.

It is an amenable number.

490592644 is a deficient number, since it is larger than the sum of its proper divisors (367944490).

490592644 is a wasteful number, since it uses less digits than its factorization.

490592644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122648165 (or 122648163 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 490592644 is about 22149.3260394081. The cubic root of 490592644 is about 788.6912282797.

The spelling of 490592644 in words is "four hundred ninety million, five hundred ninety-two thousand, six hundred forty-four".