4049345 has 4 divisors (see below), whose sum is σ = 4859220. Its totient is φ = 3239472.

The previous prime is 4049329. The next prime is 4049351. The reversal of 4049345 is 5439404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 923521 + 3125824 = 961^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 4049345 - 2⁴ = 4049329 is a prime.

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, 404930 + ... + 404939.

It is an arithmetic number, because the mean of its divisors is an integer number (1214805).

Almost surely, 2^4049345 is an apocalyptic number.

It is an amenable number.

4049345 is a deficient number, since it is larger than the sum of its proper divisors (809875).

4049345 is an equidigital number, since it uses as much as digits as its factorization.

4049345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809874.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 4049345 is about 2012.2984371112. The cubic root of 4049345 is about 159.3901918109.

The spelling of 4049345 in words is "four million, forty-nine thousand, three hundred forty-five".