423847680 has 144 divisors (see below), whose sum is σ = 1412812800. Its totient is φ = 108089344.

The previous prime is 423847643. The next prime is 423847747. The reversal of 423847680 is 86748324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85921 + ... + 90719.

It is an arithmetic number, because the mean of its divisors is an integer number (9811200).

Almost surely, 2^423847680 is an apocalyptic number.

423847680 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 423847680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706406400).

423847680 is an abundant number, since it is smaller than the sum of its proper divisors (988965120).

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

423847680 is a wasteful number, since it uses less digits than its factorization.

423847680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 423847680 is about 20587.5612931692. The cubic root of 423847680 is about 751.1671782067.

The spelling of 423847680 in words is "four hundred twenty-three million, eight hundred forty-seven thousand, six hundred eighty".