34859440 has 80 divisors (see below), whose sum is σ = 101064960. Its totient is φ = 10863360.

The previous prime is 34859417. The next prime is 34859449. The reversal of 34859440 is 4495843.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×34859440² = 2430361114227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34859440.

It is not an unprimeable number, because it can be changed into a prime (34859449) 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, 3331 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (1263312).

Almost surely, 2^34859440 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 34859440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50532480).

34859440 is an abundant number, since it is smaller than the sum of its proper divisors (66205520).

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

34859440 is a wasteful number, since it uses less digits than its factorization.

34859440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 34859440 is about 5904.1883438793. The cubic root of 34859440 is about 326.6681567797.

The spelling of 34859440 in words is "thirty-four million, eight hundred fifty-nine thousand, four hundred forty".