34140393 has 32 divisors (see below), whose sum is σ = 59678720. Its totient is φ = 18876240.

The previous prime is 34140389. The next prime is 34140443. The reversal of 34140393 is 39304143.

It is not a de Polignac number, because 34140393 - 2² = 34140389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34140343) 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 31 ways as a sum of consecutive naturals, for example, 2946 + ... + 8772.

It is an arithmetic number, because the mean of its divisors is an integer number (1864960).

Almost surely, 2^34140393 is an apocalyptic number.

It is an amenable number.

34140393 is a deficient number, since it is larger than the sum of its proper divisors (25538327).

34140393 is a wasteful number, since it uses less digits than its factorization.

34140393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 34140393 is about 5842.9780934041. The cubic root of 34140393 is about 324.4064685966.

The spelling of 34140393 in words is "thirty-four million, one hundred forty thousand, three hundred ninety-three".