34285520 has 20 divisors (see below), whose sum is σ = 79714020. Its totient is φ = 13714176.

The previous prime is 34285499. The next prime is 34285529. The reversal of 34285520 is 2558243.

It can be written as a sum of positive squares in 2 ways, for example, as 22202944 + 12082576 = 4712^2 + 3476^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34285529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214205 + ... + 214364.

It is an arithmetic number, because the mean of its divisors is an integer number (3985701).

Almost surely, 2^34285520 is an apocalyptic number.

It is an amenable number.

34285520 is an abundant number, since it is smaller than the sum of its proper divisors (45428500).

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

34285520 is a wasteful number, since it uses less digits than its factorization.

34285520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428582 (or 428576 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 34285520 is about 5855.3838473665. The cubic root of 34285520 is about 324.8654906888.

The spelling of 34285520 in words is "thirty-four million, two hundred eighty-five thousand, five hundred twenty".