490222275138 has 54 divisors (see below), whose sum is σ = 1068317427411. Its totient is φ = 162463789224.

The previous prime is 490222275133. The next prime is 490222275173. The reversal of 490222275138 is 831572222094.

490222275138 is a `hidden beast` number, since 4 + 90 + 2 + 22 + 27 + 513 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 245111137569 + 245111137569 = 495087^2 + 495087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=495087.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 490222275093 and 490222275102.

It is not an unprimeable number, because it can be changed into a prime (490222275133) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 674308131 + ... + 674308857.

Almost surely, 2^490222275138 is an apocalyptic number.

490222275138 is an abundant number, since it is smaller than the sum of its proper divisors (578095152273).

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

490222275138 is an frugal number, since it uses more digits than its factorization.

490222275138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 490222275138 in words is "four hundred ninety billion, two hundred twenty-two million, two hundred seventy-five thousand, one hundred thirty-eight".