234320142 has 64 divisors (see below), whose sum is σ = 544863744. Its totient is φ = 65802240.

The previous prime is 234320089. The next prime is 234320147. The reversal of 234320142 is 241023432.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234320147) 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 31 ways as a sum of consecutive naturals, for example, 1110417 + ... + 1110627.

It is an arithmetic number, because the mean of its divisors is an integer number (8513496).

Almost surely, 2^234320142 is an apocalyptic number.

234320142 is an abundant number, since it is smaller than the sum of its proper divisors (310543602).

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

234320142 is a wasteful number, since it uses less digits than its factorization.

234320142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 234320142 is about 15307.5191327661. The cubic root of 234320142 is about 616.5049111981.

Adding to 234320142 its reverse (241023432), we get a palindrome (475343574).

The spelling of 234320142 in words is "two hundred thirty-four million, three hundred twenty thousand, one hundred forty-two".