423822560 has 72 divisors (see below), whose sum is σ = 1164776760. Its totient is φ = 145307904.

The previous prime is 423822551. The next prime is 423822589. The reversal of 423822560 is 65228324.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19190 + ... + 34869.

It is an arithmetic number, because the mean of its divisors is an integer number (16177455).

Almost surely, 2^423822560 is an apocalyptic number.

423822560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423822560 is an abundant number, since it is smaller than the sum of its proper divisors (740954200).

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

423822560 is a wasteful number, since it uses less digits than its factorization.

423822560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54088 (or 54073 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 423822560 is about 20586.9512070146. The cubic root of 423822560 is about 751.1523382117.

The spelling of 423822560 in words is "four hundred twenty-three million, eight hundred twenty-two thousand, five hundred sixty".