234442140 has 48 divisors (see below), whose sum is σ = 690990720. Its totient is φ = 59227200.

The previous prime is 234442133. The next prime is 234442163. The reversal of 234442140 is 41244432.

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 234442140.

It is a congruent number.

It is an unprimeable number.

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, 101686 + ... + 103965.

It is an arithmetic number, because the mean of its divisors is an integer number (14395640).

Almost surely, 2^234442140 is an apocalyptic number.

234442140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234442140 is an abundant number, since it is smaller than the sum of its proper divisors (456548580).

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

234442140 is a wasteful number, since it uses less digits than its factorization.

234442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205682 (or 205680 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 234442140 is about 15311.5035185967. The cubic root of 234442140 is about 616.6118863764.

Adding to 234442140 its reverse (41244432), we get a palindrome (275686572).

The spelling of 234442140 in words is "two hundred thirty-four million, four hundred forty-two thousand, one hundred forty".