3615609228 has 144 divisors (see below), whose sum is σ = 10685079552. Its totient is φ = 931392000.

The previous prime is 3615609227. The next prime is 3615609233. The reversal of 3615609228 is 8229065163.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 3615609228.

It is not an unprimeable number, because it can be changed into a prime (3615609227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1289428 + ... + 1292228.

Almost surely, 2^3615609228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3615609228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5342539776).

3615609228 is an abundant number, since it is smaller than the sum of its proper divisors (7069470324).

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

3615609228 is a wasteful number, since it uses less digits than its factorization.

3615609228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 3615609228 is about 60129.9362048556. The cubic root of 3615609228 is about 1534.8307633486.

The spelling of 3615609228 in words is "three billion, six hundred fifteen million, six hundred nine thousand, two hundred twenty-eight".