34686428 has 12 divisors (see below), whose sum is σ = 69372912. Its totient is φ = 14865600.

The previous prime is 34686413. The next prime is 34686479. The reversal of 34686428 is 82468643.

34686428 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 619373 + ... + 619428.

It is an arithmetic number, because the mean of its divisors is an integer number (5781076).

Almost surely, 2^34686428 is an apocalyptic number.

It is an amenable number.

34686428 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.

34686428 is a wasteful number, since it uses less digits than its factorization.

34686428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238812 (or 1238810 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 34686428 is about 5889.5184862601. The cubic root of 34686428 is about 326.1268278399.

The spelling of 34686428 in words is "thirty-four million, six hundred eighty-six thousand, four hundred twenty-eight".