468393138 has 32 divisors (see below), whose sum is σ = 1069009920. Its totient is φ = 151910640.

The previous prime is 468393131. The next prime is 468393139. The reversal of 468393138 is 831393864.

It is a junction number, because it is equal to n+sod(n) for n = 468393093 and 468393102.

It is not an unprimeable number, because it can be changed into a prime (468393131) 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 15 ways as a sum of consecutive naturals, for example, 115218 + ... + 119213.

It is an arithmetic number, because the mean of its divisors is an integer number (33406560).

Almost surely, 2^468393138 is an apocalyptic number.

468393138 is an abundant number, since it is smaller than the sum of its proper divisors (600616782).

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

468393138 is a wasteful number, since it uses less digits than its factorization.

468393138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234479 (or 234473 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 468393138 is about 21642.3921505919. The cubic root of 468393138 is about 776.6109469831.

The spelling of 468393138 in words is "four hundred sixty-eight million, three hundred ninety-three thousand, one hundred thirty-eight".