34389880 has 64 divisors (see below), whose sum is σ = 88957440. Its totient is φ = 11720832.

The previous prime is 34389871. The next prime is 34389889. The reversal of 34389880 is 8898343.

It is an interprime number because it is at equal distance from previous prime (34389871) and next prime (34389889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34389889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73407 + ... + 73873.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 2^34389880 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 34389880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44478720).

34389880 is an abundant number, since it is smaller than the sum of its proper divisors (54567560).

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

34389880 is a wasteful number, since it uses less digits than its factorization.

34389880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 34389880 is about 5864.2885331471. The cubic root of 34389880 is about 325.1947708255.

The spelling of 34389880 in words is "thirty-four million, three hundred eighty-nine thousand, eight hundred eighty".