34136720 has 20 divisors (see below), whose sum is σ = 79368060. Its totient is φ = 13654656.

The previous prime is 34136699. The next prime is 34136743. The reversal of 34136720 is 2763143.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 10942864 = 4816^2 + 3308^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 34136720.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213275 + ... + 213434.

It is an arithmetic number, because the mean of its divisors is an integer number (3968403).

Almost surely, 2^34136720 is an apocalyptic number.

It is an amenable number.

34136720 is an abundant number, since it is smaller than the sum of its proper divisors (45231340).

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

34136720 is a wasteful number, since it uses less digits than its factorization.

34136720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426722 (or 426716 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 34136720 is about 5842.6637760528. The cubic root of 34136720 is about 324.3948344043.

Adding to 34136720 its reverse (2763143), we get a palindrome (36899863).

The spelling of 34136720 in words is "thirty-four million, one hundred thirty-six thousand, seven hundred twenty".