3521731040 has 96 divisors (see below), whose sum is σ = 8568068544. Its totient is φ = 1366917120.

The previous prime is 3521731027. The next prime is 3521731049. The reversal of 3521731040 is 401371253.

3521731040 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 (3521731049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3415325 + ... + 3416355.

It is an arithmetic number, because the mean of its divisors is an integer number (89250714).

Almost surely, 2^3521731040 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 3521731040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4284034272).

3521731040 is an abundant number, since it is smaller than the sum of its proper divisors (5046337504).

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

3521731040 is a wasteful number, since it uses less digits than its factorization.

3521731040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3521731040 is about 59344.1744402936. The cubic root of 3521731040 is about 1521.4303018803.

The spelling of 3521731040 in words is "three billion, five hundred twenty-one million, seven hundred thirty-one thousand, forty".