34640518 has 8 divisors (see below), whose sum is σ = 56684520. Its totient is φ = 15745680.

The previous prime is 34640513. The next prime is 34640533. The reversal of 34640518 is 81504643.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 34640518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787263 + ... + 787306.

It is an arithmetic number, because the mean of its divisors is an integer number (7085565).

Almost surely, 2^34640518 is an apocalyptic number.

34640518 is a deficient number, since it is larger than the sum of its proper divisors (22044002).

34640518 is a wasteful number, since it uses less digits than its factorization.

34640518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574582.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 34640518 is about 5885.6195935517. The cubic root of 34640518 is about 325.9828801528.

The spelling of 34640518 in words is "thirty-four million, six hundred forty thousand, five hundred eighteen".