3491603388 has 144 divisors (see below), whose sum is σ = 11340473760. Its totient is φ = 920844288.

The previous prime is 3491603387. The next prime is 3491603399. The reversal of 3491603388 is 8833061943.

3491603388 is a `hidden beast` number, since 3 + 4 + 9 + 1 + 603 + 38 + 8 = 666.

3491603388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491603387) 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, 43420 + ... + 94172.

It is an arithmetic number, because the mean of its divisors is an integer number (78753290).

Almost surely, 2^3491603388 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 3491603388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5670236880).

3491603388 is an abundant number, since it is smaller than the sum of its proper divisors (7848870372).

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

3491603388 is a wasteful number, since it uses less digits than its factorization.

3491603388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50793 (or 50778 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 3491603388 is about 59089.7908948746. The cubic root of 3491603388 is about 1517.0793680312.

The spelling of 3491603388 in words is "three billion, four hundred ninety-one million, six hundred three thousand, three hundred eighty-eight".