3613550420 has 12 divisors (see below), whose sum is σ = 7588455924. Its totient is φ = 1445420160.

The previous prime is 3613550417. The next prime is 3613550449. The reversal of 3613550420 is 240553163.

It can be written as a sum of positive squares in 2 ways, for example, as 2244106384 + 1369444036 = 47372^2 + 37006^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 90338741 + ... + 90338780.

It is an arithmetic number, because the mean of its divisors is an integer number (632371327).

Almost surely, 2^3613550420 is an apocalyptic number.

It is an amenable number.

3613550420 is an abundant number, since it is smaller than the sum of its proper divisors (3974905504).

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

3613550420 is a wasteful number, since it uses less digits than its factorization.

3613550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180677530 (or 180677528 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3613550420 is about 60112.8141081417. The cubic root of 3613550420 is about 1534.5393858221.

The spelling of 3613550420 in words is "three billion, six hundred thirteen million, five hundred fifty thousand, four hundred twenty".