423335780 has 48 divisors (see below), whose sum is σ = 1020302976. Its totient is φ = 144529920.

The previous prime is 423335777. The next prime is 423335813. The reversal of 423335780 is 87533324.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 423335780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27467 + ... + 40013.

It is an arithmetic number, because the mean of its divisors is an integer number (21256312).

Almost surely, 2^423335780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423335780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510151488).

423335780 is an abundant number, since it is smaller than the sum of its proper divisors (596967196).

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

423335780 is a wasteful number, since it uses less digits than its factorization.

423335780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12804 (or 12802 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 423335780 is about 20575.1252730087. The cubic root of 423335780 is about 750.8646501977.

The spelling of 423335780 in words is "four hundred twenty-three million, three hundred thirty-five thousand, seven hundred eighty".