34140648 has 64 divisors (see below), whose sum is σ = 89948160. Its totient is φ = 10777536.

The previous prime is 34140643. The next prime is 34140679. The reversal of 34140648 is 84604143.

It is a Cunningham number, because it is equal to 5843²-1.

It is a super-3 number, since 3×34140648³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (34140643) 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 15 ways as a sum of consecutive naturals, for example, 69861 + ... + 70347.

It is an arithmetic number, because the mean of its divisors is an integer number (1405440).

Almost surely, 2^34140648 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 34140648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44974080).

34140648 is an abundant number, since it is smaller than the sum of its proper divisors (55807512).

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

34140648 is a wasteful number, since it uses less digits than its factorization.

34140648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 34140648 is about 5842.9999144275. Note that the first 4 decimals coincide. The cubic root of 34140648 is about 324.4072762757.

The spelling of 34140648 in words is "thirty-four million, one hundred forty thousand, six hundred forty-eight".