34720345 has 12 divisors (see below), whose sum is σ = 45797220. Its totient is φ = 25250720.

The previous prime is 34720339. The next prime is 34720369. The reversal of 34720345 is 54302743.

It can be written as a sum of positive squares in 2 ways, for example, as 18688329 + 16032016 = 4323^2 + 4004^2 .

It is not a de Polignac number, because 34720345 - 2⁵ = 34720313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28090 + ... + 29299.

It is an arithmetic number, because the mean of its divisors is an integer number (3816435).

Almost surely, 2^34720345 is an apocalyptic number.

It is an amenable number.

34720345 is a deficient number, since it is larger than the sum of its proper divisors (11076875).

34720345 is a wasteful number, since it uses less digits than its factorization.

34720345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57416 (or 57405 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 34720345 is about 5892.3972201473. The cubic root of 34720345 is about 326.2330907302.

The spelling of 34720345 in words is "thirty-four million, seven hundred twenty thousand, three hundred forty-five".