34240240 has 20 divisors (see below), whose sum is σ = 79608744. Its totient is φ = 13696064.

The previous prime is 34240229. The next prime is 34240249. The reversal of 34240240 is 4204243.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34240249) 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, 213922 + ... + 214081.

Almost surely, 2^34240240 is an apocalyptic number.

It is an amenable number.

34240240 is an abundant number, since it is smaller than the sum of its proper divisors (45368504).

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

34240240 is a wasteful number, since it uses less digits than its factorization.

34240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428016 (or 428010 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 34240240 is about 5851.5160428730. The cubic root of 34240240 is about 324.7224138657.

Adding to 34240240 its reverse (4204243), we get a palindrome (38444483).

The spelling of 34240240 in words is "thirty-four million, two hundred forty thousand, two hundred forty".