234005140 has 48 divisors (see below), whose sum is σ = 529341120. Its totient is φ = 86607360.

The previous prime is 234005113. The next prime is 234005141. The reversal of 234005140 is 41500432.

234005140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234005141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9180 + ... + 23500.

It is an arithmetic number, because the mean of its divisors is an integer number (11027940).

Almost surely, 2^234005140 is an apocalyptic number.

234005140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234005140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264670560).

234005140 is an abundant number, since it is smaller than the sum of its proper divisors (295335980).

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

234005140 is a wasteful number, since it uses less digits than its factorization.

234005140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392 (or 14390 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 234005140 is about 15297.2265460115. The cubic root of 234005140 is about 616.2285266955.

Adding to 234005140 its reverse (41500432), we get a palindrome (275505572).

The spelling of 234005140 in words is "two hundred thirty-four million, five thousand, one hundred forty".