3320145305 has 8 divisors (see below), whose sum is σ = 4218537672. Its totient is φ = 2499874048.

The previous prime is 3320145299. The next prime is 3320145307. The reversal of 3320145305 is 5035410233.

It can be written as a sum of positive squares in 4 ways, for example, as 1748577856 + 1571567449 = 41816^2 + 39643^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3320145305 is a prime.

It is a super-2 number, since 2×3320145305² = 22046729692627086050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3320145307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19530182 + ... + 19530351.

It is an arithmetic number, because the mean of its divisors is an integer number (527317209).

Almost surely, 2^3320145305 is an apocalyptic number.

It is an amenable number.

3320145305 is a deficient number, since it is larger than the sum of its proper divisors (898392367).

3320145305 is a wasteful number, since it uses less digits than its factorization.

3320145305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39060555.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 3320145305 is about 57620.7020523006. The cubic root of 3320145305 is about 1491.8289486202.

Adding to 3320145305 its reverse (5035410233), we get a palindrome (8355555538).

The spelling of 3320145305 in words is "three billion, three hundred twenty million, one hundred forty-five thousand, three hundred five".