34445664 has 144 divisors (see below), whose sum is σ = 108972864. Its totient is φ = 10233600.

The previous prime is 34445657. The next prime is 34445669. The reversal of 34445664 is 46654443.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34445669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262879 + ... + 263009.

It is an arithmetic number, because the mean of its divisors is an integer number (756756).

Almost surely, 2^34445664 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 34445664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54486432).

34445664 is an abundant number, since it is smaller than the sum of its proper divisors (74527200).

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

34445664 is a wasteful number, since it uses less digits than its factorization.

34445664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 230 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 34445664 is about 5869.0428521182. The cubic root of 34445664 is about 325.3705092039.

The spelling of 34445664 in words is "thirty-four million, four hundred forty-five thousand, six hundred sixty-four".