423756472320 has 224 divisors, whose sum is σ = 1506601650240. Its totient is φ = 113001431040.

The previous prime is 423756472319. The next prime is 423756472331. The reversal of 423756472320 is 23274657324.

423756472320 is a `hidden beast` number, since 4 + 2 + 375 + 6 + 47 + 232 + 0 = 666.

It is a super-3 number, since 3×423756472320³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 914335 + ... + 1297505.

Almost surely, 2^423756472320 is an apocalyptic number.

423756472320 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 423756472320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753300825120).

423756472320 is an abundant number, since it is smaller than the sum of its proper divisors (1082845177920).

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

423756472320 is an equidigital number, since it uses as much as digits as its factorization.

423756472320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383211 (or 383181 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 423756472320 in words is "four hundred twenty-three billion, seven hundred fifty-six million, four hundred seventy-two thousand, three hundred twenty".