423169788 has 12 divisors (see below), whose sum is σ = 987396200. Its totient is φ = 141056592.

The previous prime is 423169781. The next prime is 423169807. The reversal of 423169788 is 887961324.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423169781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17632063 + ... + 17632086.

Almost surely, 2^423169788 is an apocalyptic number.

It is an amenable number.

423169788 is an abundant number, since it is smaller than the sum of its proper divisors (564226412).

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

423169788 is a wasteful number, since it uses less digits than its factorization.

423169788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35264156 (or 35264154 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 423169788 is about 20571.0910746124. The cubic root of 423169788 is about 750.7664981517.

The spelling of 423169788 in words is "four hundred twenty-three million, one hundred sixty-nine thousand, seven hundred eighty-eight".