423143512 has 32 divisors (see below), whose sum is σ = 903156480. Its totient is φ = 183974560.

The previous prime is 423143477. The next prime is 423143531. The reversal of 423143512 is 215341324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102508 + ... + 106555.

It is an arithmetic number, because the mean of its divisors is an integer number (28223640).

Almost surely, 2^423143512 is an apocalyptic number.

It is an amenable number.

423143512 is an abundant number, since it is smaller than the sum of its proper divisors (480012968).

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

423143512 is a wasteful number, since it uses less digits than its factorization.

423143512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209103 (or 209099 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 423143512 is about 20570.4524014422. The cubic root of 423143512 is about 750.7509586453.

Adding to 423143512 its reverse (215341324), we get a palindrome (638484836).

The spelling of 423143512 in words is "four hundred twenty-three million, one hundred forty-three thousand, five hundred twelve".