34207820 has 24 divisors (see below), whose sum is σ = 74314800. Its totient is φ = 13211072.

The previous prime is 34207819. The next prime is 34207837. The reversal of 34207820 is 2870243.

It is a self number, because there is not a number n which added to its sum of digits gives 34207820.

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 7 ways as a sum of consecutive naturals, for example, 28910 + ... + 30069.

It is an arithmetic number, because the mean of its divisors is an integer number (3096450).

Almost surely, 2^34207820 is an apocalyptic number.

It is an amenable number.

34207820 is an abundant number, since it is smaller than the sum of its proper divisors (40106980).

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

34207820 is a wasteful number, since it uses less digits than its factorization.

34207820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59017 (or 59015 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 34207820 is about 5848.7451645631. The cubic root of 34207820 is about 324.6198948702.

The spelling of 34207820 in words is "thirty-four million, two hundred seven thousand, eight hundred twenty".