3609391104 has 520 divisors, whose sum is σ = 12559358592. Its totient is φ = 1021870080.

The previous prime is 3609391087. The next prime is 3609391129. The reversal of 3609391104 is 4011939063.

3609391104 is a `hidden beast` number, since 3 + 609 + 39 + 1 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 83939307 + ... + 83939349.

Almost surely, 2^3609391104 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 3609391104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6279679296).

3609391104 is an abundant number, since it is smaller than the sum of its proper divisors (8949967488).

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

3609391104 is a wasteful number, since it uses less digits than its factorization.

3609391104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 3609391104 is about 60078.2082289410. The cubic root of 3609391104 is about 1533.9503912582.

The spelling of 3609391104 in words is "three billion, six hundred nine million, three hundred ninety-one thousand, one hundred four".