490418644 has 12 divisors (see below), whose sum is σ = 865828404. Its totient is φ = 243039104.

The previous prime is 490418641. The next prime is 490418647. The reversal of 490418644 is 446814094.

It is an interprime number because it is at equal distance from previous prime (490418641) and next prime (490418647).

It can be written as a sum of positive squares in 2 ways, for example, as 242985744 + 247432900 = 15588^2 + 15730^2 .

It is a junction number, because it is equal to n+sod(n) for n = 490418597 and 490418606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490418641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542047 + ... + 542950.

It is an arithmetic number, because the mean of its divisors is an integer number (72152367).

Almost surely, 2^490418644 is an apocalyptic number.

It is an amenable number.

490418644 is a deficient number, since it is larger than the sum of its proper divisors (375409760).

490418644 is a wasteful number, since it uses less digits than its factorization.

490418644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085114 (or 1085112 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 490418644 is about 22145.3978063163. The cubic root of 490418644 is about 788.5979747405.

The spelling of 490418644 in words is "four hundred ninety million, four hundred eighteen thousand, six hundred forty-four".