423736320 has 264 divisors, whose sum is σ = 1579366944. Its totient is φ = 96681984.

The previous prime is 423736283. The next prime is 423736367. The reversal of 423736320 is 23637324.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752359 + ... + 752921.

Almost surely, 2^423736320 is an apocalyptic number.

423736320 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 423736320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789683472).

423736320 is an abundant number, since it is smaller than the sum of its proper divisors (1155630624).

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

423736320 is a wasteful number, since it uses less digits than its factorization.

423736320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 423736320 is about 20584.8565698185. The cubic root of 423736320 is about 751.1013862505.

The spelling of 423736320 in words is "four hundred twenty-three million, seven hundred thirty-six thousand, three hundred twenty".