1343434434520 has 32 divisors (see below), whose sum is σ = 3072280392720. Its totient is φ = 528564366720.

The previous prime is 1343434434497. The next prime is 1343434434523. The reversal of 1343434434520 is 254344343431.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343434434523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275291502 + ... + 275296381.

Almost surely, 2^{1343434434520} is an apocalyptic number.

1343434434520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343434434520 is an abundant number, since it is smaller than the sum of its proper divisors (1728845958200).

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

1343434434520 is a wasteful number, since it uses less digits than its factorization.

1343434434520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550587955 (or 550587951 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 1343434434520 its reverse (254344343431), we get a palindrome (1597778777951).

The spelling of 1343434434520 in words is "one trillion, three hundred forty-three billion, four hundred thirty-four million, four hundred thirty-four thousand, five hundred twenty".