234203440 has 40 divisors (see below), whose sum is σ = 552205728. Its totient is φ = 92359680.

The previous prime is 234203423. The next prime is 234203447. The reversal of 234203440 is 44302432.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (234203447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14937 + ... + 26296.

Almost surely, 2^234203440 is an apocalyptic number.

234203440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234203440 is an abundant number, since it is smaller than the sum of its proper divisors (318002288).

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

234203440 is a wasteful number, since it uses less digits than its factorization.

234203440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41317 (or 41311 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 234203440 is about 15303.7067405253. The cubic root of 234203440 is about 616.4025451173.

Adding to 234203440 its reverse (44302432), we get a palindrome (278505872).

The spelling of 234203440 in words is "two hundred thirty-four million, two hundred three thousand, four hundred forty".