34240440 has 128 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 8231424.

The previous prime is 34240439. The next prime is 34240471. The reversal of 34240440 is 4404243.

34240440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 73087 + ... + 73553.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^34240440 is an apocalyptic number.

34240440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34240440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56609280).

34240440 is an abundant number, since it is smaller than the sum of its proper divisors (78978120).

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

34240440 is a wasteful number, since it uses less digits than its factorization.

34240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 34240440 is about 5851.5331324363. The cubic root of 34240440 is about 324.7230461077.

Adding to 34240440 its reverse (4404243), we get a palindrome (38644683).

The spelling of 34240440 in words is "thirty-four million, two hundred forty thousand, four hundred forty".