3491521224 has 64 divisors (see below), whose sum is σ = 8944784640. Its totient is φ = 1135122240.

The previous prime is 3491521213. The next prime is 3491521247. The reversal of 3491521224 is 4221251943.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851419 + ... + 855509.

It is an arithmetic number, because the mean of its divisors is an integer number (139762260).

Almost surely, 2^3491521224 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 3491521224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4472392320).

3491521224 is an abundant number, since it is smaller than the sum of its proper divisors (5453263416).

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

3491521224 is a wasteful number, since it uses less digits than its factorization.

3491521224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970 (or 4966 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 3491521224 is about 59089.0956437819. The cubic root of 3491521224 is about 1517.0674680268.

The spelling of 3491521224 in words is "three billion, four hundred ninety-one million, five hundred twenty-one thousand, two hundred twenty-four".