423854336 has 72 divisors (see below), whose sum is σ = 901587960. Its totient is φ = 198868992.

The previous prime is 423854329. The next prime is 423854363. The reversal of 423854336 is 633458324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42823936 + 381030400 = 6544^2 + 19520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 423854336.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257560 + ... + 1257896.

It is an arithmetic number, because the mean of its divisors is an integer number (12522055).

Almost surely, 2^423854336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423854336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450793980).

423854336 is an abundant number, since it is smaller than the sum of its proper divisors (477733624).

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

423854336 is an frugal number, since it uses more digits than its factorization.

423854336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 356 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 423854336 is about 20587.7229435409. The cubic root of 423854336 is about 751.1711102345.

The spelling of 423854336 in words is "four hundred twenty-three million, eight hundred fifty-four thousand, three hundred thirty-six".