3640306332 has 24 divisors (see below), whose sum is σ = 9147436816. Its totient is φ = 1120094208.

The previous prime is 3640306331. The next prime is 3640306343. The reversal of 3640306332 is 2336030463.

It is a self number, because there is not a number n which added to its sum of digits gives 3640306332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640306331) 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, 11667493 + ... + 11667804.

Almost surely, 2^3640306332 is an apocalyptic number.

It is an amenable number.

3640306332 is an abundant number, since it is smaller than the sum of its proper divisors (5507130484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3640306332 is a wasteful number, since it uses less digits than its factorization.

3640306332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23335317 (or 23335315 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

The square root of 3640306332 is about 60334.9511643127. The cubic root of 3640306332 is about 1538.3174872435.

Adding to 3640306332 its reverse (2336030463), we get a palindrome (5976336795).

The spelling of 3640306332 in words is "three billion, six hundred forty million, three hundred six thousand, three hundred thirty-two".