34489840 has 120 divisors (see below), whose sum is σ = 100931040. Its totient is φ = 10728960.

The previous prime is 34489837. The next prime is 34489841. The reversal of 34489840 is 4898443.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 34489793 and 34489802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34489841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67506 + ... + 68014.

It is an arithmetic number, because the mean of its divisors is an integer number (841092).

Almost surely, 2^34489840 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 34489840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50465520).

34489840 is an abundant number, since it is smaller than the sum of its proper divisors (66441200).

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

34489840 is a wasteful number, since it uses less digits than its factorization.

34489840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 34489840 is about 5872.8051219158. The cubic root of 34489840 is about 325.5095439009.

The spelling of 34489840 in words is "thirty-four million, four hundred eighty-nine thousand, eight hundred forty".