423034031420 has 216 divisors, whose sum is σ = 1223280106272. Its totient is φ = 121711645440.

The previous prime is 423034031401. The next prime is 423034031423. The reversal of 423034031420 is 24130430324.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 423034031420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423034031423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1404329 + ... + 1678751.

Almost surely, 2^423034031420 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 423034031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611640053136).

423034031420 is an abundant number, since it is smaller than the sum of its proper divisors (800246074852).

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

423034031420 is a wasteful number, since it uses less digits than its factorization.

423034031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274481 (or 274461 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 423034031420 its reverse (24130430324), we get a palindrome (447164461744).

The spelling of 423034031420 in words is "four hundred twenty-three billion, thirty-four million, thirty-one thousand, four hundred twenty".