3490637568 has 144 divisors (see below), whose sum is σ = 10237594752. Its totient is φ = 1047040000.

The previous prime is 3490637551. The next prime is 3490637593. The reversal of 3490637568 is 8657360943.

It is a super-2 number, since 2×3490637568² = 24369101262265909248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3490637568.

It is a congruent number.

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, 851203 + ... + 855293.

It is an arithmetic number, because the mean of its divisors is an integer number (71094408).

Almost surely, 2^3490637568 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 3490637568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5118797376).

3490637568 is an abundant number, since it is smaller than the sum of its proper divisors (6746957184).

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

3490637568 is a wasteful number, since it uses less digits than its factorization.

3490637568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222 (or 4208 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The square root of 3490637568 is about 59081.6178519174. The cubic root of 3490637568 is about 1516.9394742582.

The spelling of 3490637568 in words is "three billion, four hundred ninety million, six hundred thirty-seven thousand, five hundred sixty-eight".