34081520 has 40 divisors (see below), whose sum is σ = 86445360. Its totient is φ = 12392960.

The previous prime is 34081517. The next prime is 34081529. The reversal of 34081520 is 2518043.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34081529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18485 + ... + 20244.

It is an arithmetic number, because the mean of its divisors is an integer number (2161134).

Almost surely, 2^34081520 is an apocalyptic number.

It is an amenable number.

34081520 is an abundant number, since it is smaller than the sum of its proper divisors (52363840).

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

34081520 is a wasteful number, since it uses less digits than its factorization.

34081520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38753 (or 38747 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 34081520 is about 5837.9379921339. The cubic root of 34081520 is about 324.2198883310.

Adding to 34081520 its reverse (2518043), we get a palindrome (36599563).

The spelling of 34081520 in words is "thirty-four million, eighty-one thousand, five hundred twenty".