34521040 has 20 divisors (see below), whose sum is σ = 80261604. Its totient is φ = 13808384.

The previous prime is 34521029. The next prime is 34521061. The reversal of 34521040 is 4012543.

It can be written as a sum of positive squares in 2 ways, for example, as 10784656 + 23736384 = 3284^2 + 4872^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 34520999 and 34521017.

It is a congruent number.

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, 215677 + ... + 215836.

Almost surely, 2^34521040 is an apocalyptic number.

It is an amenable number.

34521040 is an abundant number, since it is smaller than the sum of its proper divisors (45740564).

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

34521040 is a wasteful number, since it uses less digits than its factorization.

34521040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431526 (or 431520 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 34521040 is about 5875.4608329900. The cubic root of 34521040 is about 325.6076678404.

Adding to 34521040 its reverse (4012543), we get a palindrome (38533583).

The spelling of 34521040 in words is "thirty-four million, five hundred twenty-one thousand, forty".