3231340645 has 48 divisors (see below), whose sum is σ = 4394138112. Its totient is φ = 2265010560.

The previous prime is 3231340639. The next prime is 3231340661. The reversal of 3231340645 is 5460431323.

It is not a de Polignac number, because 3231340645 - 2²³ = 3222952037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23246986 + ... + 23247124.

It is an arithmetic number, because the mean of its divisors is an integer number (91544544).

Almost surely, 2^3231340645 is an apocalyptic number.

It is an amenable number.

3231340645 is a deficient number, since it is larger than the sum of its proper divisors (1162797467).

3231340645 is a wasteful number, since it uses less digits than its factorization.

3231340645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 3231340645 is about 56844.8823114271. The cubic root of 3231340645 is about 1478.4078088193.

Adding to 3231340645 its reverse (5460431323), we get a palindrome (8691771968).

The spelling of 3231340645 in words is "three billion, two hundred thirty-one million, three hundred forty thousand, six hundred forty-five".