3613448920 has 32 divisors (see below), whose sum is σ = 8133602400. Its totient is φ = 1444785408.

The previous prime is 3613448837. The next prime is 3613448921. The reversal of 3613448920 is 298443163.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613448921) 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, 87421 + ... + 121939.

It is an arithmetic number, because the mean of its divisors is an integer number (254175075).

Almost surely, 2^3613448920 is an apocalyptic number.

It is an amenable number.

3613448920 is an abundant number, since it is smaller than the sum of its proper divisors (4520153480).

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

3613448920 is a wasteful number, since it uses less digits than its factorization.

3613448920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37147 (or 37143 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 3613448920 is about 60111.9698562607. The cubic root of 3613448920 is about 1534.5250179394.

The spelling of 3613448920 in words is "three billion, six hundred thirteen million, four hundred forty-eight thousand, nine hundred twenty".