34020556 has 12 divisors (see below), whose sum is σ = 59695720. Its totient is φ = 16964640.

The previous prime is 34020551. The next prime is 34020559. The reversal of 34020556 is 65502043.

It is a self number, because there is not a number n which added to its sum of digits gives 34020556.

It is not an unprimeable number, because it can be changed into a prime (34020551) 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, 9705 + ... + 12736.

Almost surely, 2^34020556 is an apocalyptic number.

It is an amenable number.

34020556 is a deficient number, since it is larger than the sum of its proper divisors (25675164).

34020556 is a wasteful number, since it uses less digits than its factorization.

34020556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824 (or 22822 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 34020556 is about 5832.7142909627. The cubic root of 34020556 is about 324.0264546808.

Adding to 34020556 its reverse (65502043), we get a palindrome (99522599).

The spelling of 34020556 in words is "thirty-four million, twenty thousand, five hundred fifty-six".