234145420 has 48 divisors (see below), whose sum is σ = 538604640. Its totient is φ = 85105664.

The previous prime is 234145409. The next prime is 234145423. The reversal of 234145420 is 24541432.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (234145423) 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, 2014 + ... + 21733.

It is an arithmetic number, because the mean of its divisors is an integer number (11220930).

Almost surely, 2^234145420 is an apocalyptic number.

234145420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234145420 is an abundant number, since it is smaller than the sum of its proper divisors (304459220).

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

234145420 is a wasteful number, since it uses less digits than its factorization.

234145420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23802 (or 23800 counting only the distinct ones).

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

The square root of 234145420 is about 15301.8110039302. The cubic root of 234145420 is about 616.3516397600.

Adding to 234145420 its reverse (24541432), we get a palindrome (258686852).

The spelling of 234145420 in words is "two hundred thirty-four million, one hundred forty-five thousand, four hundred twenty".