34395640 has 16 divisors (see below), whose sum is σ = 77390280. Its totient is φ = 13758240.

The previous prime is 34395637. The next prime is 34395659. The reversal of 34395640 is 4659343.

It is a happy number.

34395640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 34395596 and 34395605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429906 + ... + 429985.

Almost surely, 2^34395640 is an apocalyptic number.

It is an amenable number.

34395640 is an abundant number, since it is smaller than the sum of its proper divisors (42994640).

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

34395640 is a wasteful number, since it uses less digits than its factorization.

34395640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859902 (or 859898 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 34395640 is about 5864.7796207530. The cubic root of 34395640 is about 325.2129255589.

The spelling of 34395640 in words is "thirty-four million, three hundred ninety-five thousand, six hundred forty".