34345540 has 72 divisors (see below), whose sum is σ = 78345792. Its totient is φ = 12640320.

The previous prime is 34345511. The next prime is 34345547. The reversal of 34345540 is 4554343.

It is a super-2 number, since 2×34345540² = 2359232235783200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34345499 and 34345508.

It is not an unprimeable number, because it can be changed into a prime (34345547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483705 + ... + 483775.

It is an arithmetic number, because the mean of its divisors is an integer number (1088136).

Almost surely, 2^34345540 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 34345540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39172896).

34345540 is an abundant number, since it is smaller than the sum of its proper divisors (44000252).

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

34345540 is a wasteful number, since it uses less digits than its factorization.

34345540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 34345540 is about 5860.5068040230. The cubic root of 34345540 is about 325.0549492888.

Adding to 34345540 its reverse (4554343), we get a palindrome (38899883).

The spelling of 34345540 in words is "thirty-four million, three hundred forty-five thousand, five hundred forty".