4134321520 has 40 divisors (see below), whose sum is σ = 10985484384. Its totient is φ = 1417481472.

The previous prime is 4134321449. The next prime is 4134321523. The reversal of 4134321520 is 251234314.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×4134321520² = 34185228861470220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4134321523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690799 + ... + 3691918.

Almost surely, 2^4134321520 is an apocalyptic number.

4134321520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4134321520 is an abundant number, since it is smaller than the sum of its proper divisors (6851162864).

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

4134321520 is a wasteful number, since it uses less digits than its factorization.

4134321520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382737 (or 7382731 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4134321520 is about 64298.6898777883. The cubic root of 4134321520 is about 1604.9743004331.

Adding to 4134321520 its reverse (251234314), we get a palindrome (4385555834).

The spelling of 4134321520 in words is "four billion, one hundred thirty-four million, three hundred twenty-one thousand, five hundred twenty".