34020812 has 12 divisors (see below), whose sum is σ = 68041680. Its totient is φ = 14580336.

The previous prime is 34020803. The next prime is 34020817. The reversal of 34020812 is 21802043.

34020812 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (34020817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607487 + ... + 607542.

It is an arithmetic number, because the mean of its divisors is an integer number (5670140).

Almost surely, 2^34020812 is an apocalyptic number.

It is an amenable number.

34020812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

34020812 is a wasteful number, since it uses less digits than its factorization.

34020812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215040 (or 1215038 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 34020812 is about 5832.7362361074. The cubic root of 34020812 is about 324.0272674303.

Adding to 34020812 its reverse (21802043), we get a palindrome (55822855).

The spelling of 34020812 in words is "thirty-four million, twenty thousand, eight hundred twelve".