423322520 has 32 divisors (see below), whose sum is σ = 955383120. Its totient is φ = 168812160.

The previous prime is 423322511. The next prime is 423322531. The reversal of 423322520 is 25223324.

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, 2747 + ... + 29226.

Almost surely, 2^423322520 is an apocalyptic number.

423322520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423322520 is an abundant number, since it is smaller than the sum of its proper divisors (532060600).

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

423322520 is a wasteful number, since it uses less digits than its factorization.

423322520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32315 (or 32311 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 423322520 is about 20574.8030367243. The cubic root of 423322520 is about 750.8568104247.

Adding to 423322520 its reverse (25223324), we get a palindrome (448545844).

The spelling of 423322520 in words is "four hundred twenty-three million, three hundred twenty-two thousand, five hundred twenty".