423167520 has 96 divisors (see below), whose sum is σ = 1369061568. Its totient is φ = 109790208.

The previous prime is 423167491. The next prime is 423167527. The reversal of 423167520 is 25761324.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (423167527) 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, 5847 + ... + 29673.

It is an arithmetic number, because the mean of its divisors is an integer number (14261058).

Almost surely, 2^423167520 is an apocalyptic number.

423167520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423167520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684530784).

423167520 is an abundant number, since it is smaller than the sum of its proper divisors (945894048).

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

423167520 is a wasteful number, since it uses less digits than its factorization.

423167520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23882 (or 23874 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 423167520 is about 20571.0359486342. The cubic root of 423167520 is about 750.7651568922.

The spelling of 423167520 in words is "four hundred twenty-three million, one hundred sixty-seven thousand, five hundred twenty".