235144420 has 24 divisors (see below), whose sum is σ = 564346944. Its totient is φ = 80620896.

The previous prime is 235144409. The next prime is 235144421. The reversal of 235144420 is 24441532.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (235144421) 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, 839662 + ... + 839941.

It is an arithmetic number, because the mean of its divisors is an integer number (23514456).

Almost surely, 2^235144420 is an apocalyptic number.

235144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235144420 is an abundant number, since it is smaller than the sum of its proper divisors (329202524).

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

235144420 is a wasteful number, since it uses less digits than its factorization.

235144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679619 (or 1679617 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 235144420 is about 15334.4194542865. The cubic root of 235144420 is about 617.2269671007.

Adding to 235144420 its reverse (24441532), we get a palindrome (259585952).

The spelling of 235144420 in words is "two hundred thirty-five million, one hundred forty-four thousand, four hundred twenty".