3520245 has 8 divisors (see below), whose sum is σ = 5632416. Its totient is φ = 1877456.

The previous prime is 3520243. The next prime is 3520261. The reversal of 3520245 is 5420253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3520245 - 2¹ = 3520243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117327 + ... + 117356.

It is an arithmetic number, because the mean of its divisors is an integer number (704052).

Almost surely, 2^3520245 is an apocalyptic number.

It is an amenable number.

3520245 is a deficient number, since it is larger than the sum of its proper divisors (2112171).

3520245 is a wasteful number, since it uses less digits than its factorization.

3520245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234691.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 3520245 is about 1876.2315955127. The cubic root of 3520245 is about 152.1216276037.

Adding to 3520245 its reverse (5420253), we get a palindrome (8940498).

The spelling of 3520245 in words is "three million, five hundred twenty thousand, two hundred forty-five".