423014332440 has 192 divisors, whose sum is σ = 1476587599200. Its totient is φ = 96665812992.

The previous prime is 423014332397. The next prime is 423014332441. The reversal of 423014332440 is 44233410324.

It is a happy number.

It is a super-2 number, since 2×423014332440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 423014332398 and 423014332407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423014332441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41560632 + ... + 41570808.

Almost surely, 2^423014332440 is an apocalyptic number.

423014332440 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 423014332440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738293799600).

423014332440 is an abundant number, since it is smaller than the sum of its proper divisors (1053573266760).

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

423014332440 is a wasteful number, since it uses less digits than its factorization.

423014332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17274 (or 17263 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 423014332440 its reverse (44233410324), we get a palindrome (467247742764).

The spelling of 423014332440 in words is "four hundred twenty-three billion, fourteen million, three hundred thirty-two thousand, four hundred forty".