423440213140 has 48 divisors (see below), whose sum is σ = 1051299849600. Its totient is φ = 140173310592.

The previous prime is 423440213137. The next prime is 423440213167. The reversal of 423440213140 is 41312044324.

It is a super-2 number, since 2×423440213140² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 423440213099 and 423440213108.

It is a congruent number.

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, 52143750 + ... + 52151869.

It is an arithmetic number, because the mean of its divisors is an integer number (21902080200).

Almost surely, 2^423440213140 is an apocalyptic number.

It is an amenable number.

423440213140 is an abundant number, since it is smaller than the sum of its proper divisors (627859636460).

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

423440213140 is a wasteful number, since it uses less digits than its factorization.

423440213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104295664 (or 104295662 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 423440213140 its reverse (41312044324), we get a palindrome (464752257464).

The spelling of 423440213140 in words is "four hundred twenty-three billion, four hundred forty million, two hundred thirteen thousand, one hundred forty".