34405660 has 48 divisors (see below), whose sum is σ = 75220992. Its totient is φ = 13204800.

The previous prime is 34405649. The next prime is 34405661. The reversal of 34405660 is 6650443.

34405660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34405661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 130689 + ... + 130951.

It is an arithmetic number, because the mean of its divisors is an integer number (1567104).

Almost surely, 2^34405660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34405660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37610496).

34405660 is an abundant number, since it is smaller than the sum of its proper divisors (40815332).

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

34405660 is a wasteful number, since it uses less digits than its factorization.

34405660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 34405660 is about 5865.6338105954. The cubic root of 34405660 is about 325.2445024016.

The spelling of 34405660 in words is "thirty-four million, four hundred five thousand, six hundred sixty".