34668640 has 24 divisors (see below), whose sum is σ = 81905040. Its totient is φ = 13867392.

The previous prime is 34668629. The next prime is 34668643. The reversal of 34668640 is 4686643.

It is a self number, because there is not a number n which added to its sum of digits gives 34668640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34668643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108180 + ... + 108499.

It is an arithmetic number, because the mean of its divisors is an integer number (3412710).

Almost surely, 2^34668640 is an apocalyptic number.

It is an amenable number.

34668640 is an abundant number, since it is smaller than the sum of its proper divisors (47236400).

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

34668640 is a wasteful number, since it uses less digits than its factorization.

34668640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216694 (or 216686 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 34668640 is about 5888.0081521683. The cubic root of 34668640 is about 326.0710698553.

It can be divided in two parts, 346 and 68640, that added together give a palindrome (68986).

The spelling of 34668640 in words is "thirty-four million, six hundred sixty-eight thousand, six hundred forty".