423531936 has 96 divisors (see below), whose sum is σ = 1289070720. Its totient is φ = 135032832.

The previous prime is 423531923. The next prime is 423531943. The reversal of 423531936 is 639135324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 423531936.

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, 9216 + ... + 30528.

It is an arithmetic number, because the mean of its divisors is an integer number (13427820).

Almost surely, 2^423531936 is an apocalyptic number.

423531936 is a gapful number since it is divisible by the number (46) 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 423531936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644535360).

423531936 is an abundant number, since it is smaller than the sum of its proper divisors (865538784).

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

423531936 is a wasteful number, since it uses less digits than its factorization.

423531936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355 (or 21341 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 423531936 is about 20579.8915449037. The cubic root of 423531936 is about 750.9806053255.

The spelling of 423531936 in words is "four hundred twenty-three million, five hundred thirty-one thousand, nine hundred thirty-six".