34520220453440 has 56 divisors (see below), whose sum is σ = 82202593869312. Its totient is φ = 13807866631680.

The previous prime is 34520220453419. The next prime is 34520220453497. The reversal of 34520220453440 is 4435402202543.

It is a junction number, because it is equal to n+sod(n) for n = 34520220453394 and 34520220453403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19885985 + ... + 21552095.

It is an arithmetic number, because the mean of its divisors is an integer number (1467903461952).

Almost surely, 2^{34520220453440} is an apocalyptic number.

It is an amenable number.

34520220453440 is an abundant number, since it is smaller than the sum of its proper divisors (47682373415872).

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

34520220453440 is a wasteful number, since it uses less digits than its factorization.

34520220453440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730875 (or 1730865 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 34520220453440 its reverse (4435402202543), we get a palindrome (38955622655983).

The spelling of 34520220453440 in words is "thirty-four trillion, five hundred twenty billion, two hundred twenty million, four hundred fifty-three thousand, four hundred forty".