13434043420 has 96 divisors (see below), whose sum is σ = 33062633856. Its totient is φ = 4490035200.

The previous prime is 13434043387. The next prime is 13434043429. The reversal of 13434043420 is 2434043431.

It is a super-2 number, since 2×13434043420² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13434043429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958060 + ... + 971980.

It is an arithmetic number, because the mean of its divisors is an integer number (344402436).

Almost surely, 2^13434043420 is an apocalyptic number.

13434043420 is a gapful number since it is divisible by the number (10) 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 13434043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16531316928).

13434043420 is an abundant number, since it is smaller than the sum of its proper divisors (19628590436).

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

13434043420 is a wasteful number, since it uses less digits than its factorization.

13434043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111 (or 14109 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 13434043420 its reverse (2434043431), we get a palindrome (15868086851).

The spelling of 13434043420 in words is "thirteen billion, four hundred thirty-four million, forty-three thousand, four hundred twenty".