34540840 has 16 divisors (see below), whose sum is σ = 77716980. Its totient is φ = 13816320.

The previous prime is 34540829. The next prime is 34540859. The reversal of 34540840 is 4804543.

It can be written as a sum of positive squares in 2 ways, for example, as 34316164 + 224676 = 5858^2 + 474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34540799 and 34540808.

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, 431721 + ... + 431800.

Almost surely, 2^34540840 is an apocalyptic number.

It is an amenable number.

34540840 is an abundant number, since it is smaller than the sum of its proper divisors (43176140).

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

34540840 is a wasteful number, since it uses less digits than its factorization.

34540840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863532 (or 863528 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 34540840 is about 5877.1455656637. The cubic root of 34540840 is about 325.6699081400.

The spelling of 34540840 in words is "thirty-four million, five hundred forty thousand, eight hundred forty".