423234140 has 48 divisors (see below), whose sum is σ = 1032998400. Its totient is φ = 142646592.

The previous prime is 423234121. The next prime is 423234151. The reversal of 423234140 is 41432324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17360 + ... + 33879.

It is an arithmetic number, because the mean of its divisors is an integer number (21520800).

Almost surely, 2^423234140 is an apocalyptic number.

It is an amenable number.

423234140 is an abundant number, since it is smaller than the sum of its proper divisors (609764260).

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

423234140 is a wasteful number, since it uses less digits than its factorization.

423234140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51314 (or 51312 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 423234140 is about 20572.6551519244. The cubic root of 423234140 is about 750.8045529138.

Adding to 423234140 its reverse (41432324), we get a palindrome (464666464).

The spelling of 423234140 in words is "four hundred twenty-three million, two hundred thirty-four thousand, one hundred forty".