423690288 has 80 divisors (see below), whose sum is σ = 1260871680. Its totient is φ = 120089088.

The previous prime is 423690271. The next prime is 423690307. The reversal of 423690288 is 882096324.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37708 + ... + 47636.

It is an arithmetic number, because the mean of its divisors is an integer number (15760896).

Almost surely, 2^423690288 is an apocalyptic number.

423690288 is a gapful number since it is divisible by the number (48) 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 423690288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630435840).

423690288 is an abundant number, since it is smaller than the sum of its proper divisors (837181392).

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

423690288 is a wasteful number, since it uses less digits than its factorization.

423690288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074 (or 10068 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 423690288 is about 20583.7384359596. The cubic root of 423690288 is about 751.0741869841.

The spelling of 423690288 in words is "four hundred twenty-three million, six hundred ninety thousand, two hundred eighty-eight".