3320145 has 24 divisors (see below), whose sum is σ = 5826600. Its totient is φ = 1748736.

The previous prime is 3320143. The next prime is 3320189. The reversal of 3320145 is 5410233.

It can be written as a sum of positive squares in 4 ways, for example, as 123201 + 3196944 = 351^2 + 1788^2 .

It is not a de Polignac number, because 3320145 - 2¹ = 3320143 is a prime.

It is a super-2 number, since 2×3320145² = 22046725642050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3320143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3591 + ... + 4419.

It is an arithmetic number, because the mean of its divisors is an integer number (242775).

Almost surely, 2^3320145 is an apocalyptic number.

It is an amenable number.

3320145 is a deficient number, since it is larger than the sum of its proper divisors (2506455).

3320145 is a wasteful number, since it uses less digits than its factorization.

3320145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3320145 is about 1822.1265049387. The cubic root of 3320145 is about 149.1828902939.

Adding to 3320145 its reverse (5410233), we get a palindrome (8730378).

The spelling of 3320145 in words is "three million, three hundred twenty thousand, one hundred forty-five".