423302520 has 256 divisors, whose sum is σ = 1418342400. Its totient is φ = 100638720.

The previous prime is 423302513. The next prime is 423302543. The reversal of 423302520 is 25203324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3745984 + ... + 3746096.

It is an arithmetic number, because the mean of its divisors is an integer number (5540400).

Almost surely, 2^423302520 is an apocalyptic number.

423302520 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 423302520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709171200).

423302520 is an abundant number, since it is smaller than the sum of its proper divisors (995039880).

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

423302520 is a wasteful number, since it uses less digits than its factorization.

423302520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 423302520 is about 20574.3169995993. The cubic root of 423302520 is about 750.8449854198.

Adding to 423302520 its reverse (25203324), we get a palindrome (448505844).

It can be divided in two parts, 42330 and 2520, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 423302520 in words is "four hundred twenty-three million, three hundred two thousand, five hundred twenty".