490056645 has 64 divisors (see below), whose sum is σ = 919699200. Its totient is φ = 220631040.

The previous prime is 490056643. The next prime is 490056661. The reversal of 490056645 is 546650094.

It is not a de Polignac number, because 490056645 - 2¹ = 490056643 is a prime.

It is a super-3 number, since 3×490056645³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490056643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105165 + ... + 109725.

It is an arithmetic number, because the mean of its divisors is an integer number (14370300).

Almost surely, 2^490056645 is an apocalyptic number.

It is an amenable number.

490056645 is a deficient number, since it is larger than the sum of its proper divisors (429642555).

490056645 is a wasteful number, since it uses less digits than its factorization.

490056645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 490056645 is about 22137.2230643322. The cubic root of 490056645 is about 788.4038943358.

The spelling of 490056645 in words is "four hundred ninety million, fifty-six thousand, six hundred forty-five".