468822138 has 16 divisors (see below), whose sum is σ = 938065440. Its totient is φ = 156203856.

The previous prime is 468822127. The next prime is 468822139. The reversal of 468822138 is 831228864.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 468822138.

It is not an unprimeable number, because it can be changed into a prime (468822139) 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 7 ways as a sum of consecutive naturals, for example, 2020 + ... + 30687.

It is an arithmetic number, because the mean of its divisors is an integer number (58629090).

Almost surely, 2^468822138 is an apocalyptic number.

468822138 is an abundant number, since it is smaller than the sum of its proper divisors (469243302).

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

468822138 is a wasteful number, since it uses less digits than its factorization.

468822138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35101.

The product of its digits is 147456, while the sum is 42.

The square root of 468822138 is about 21652.3009862693. The cubic root of 468822138 is about 776.8479732513.

The spelling of 468822138 in words is "four hundred sixty-eight million, eight hundred twenty-two thousand, one hundred thirty-eight".