423717880320 has 720 divisors, whose sum is σ = 1762249851648. Its totient is φ = 93717872640.

The previous prime is 423717880307. The next prime is 423717880373. The reversal of 423717880320 is 23088717324.

423717880320 is a `hidden beast` number, since 4 + 237 + 17 + 8 + 80 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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 71 ways as a sum of consecutive naturals, for example, 34991707 + ... + 35003813.

Almost surely, 2^423717880320 is an apocalyptic number.

423717880320 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 423717880320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881124925824).

423717880320 is an abundant number, since it is smaller than the sum of its proper divisors (1338531971328).

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

423717880320 is a wasteful number, since it uses less digits than its factorization.

423717880320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181 (or 12155 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 423717880320 in words is "four hundred twenty-three billion, seven hundred seventeen million, eight hundred eighty thousand, three hundred twenty".