3226643574 has 128 divisors (see below), whose sum is σ = 8529408000. Its totient is φ = 788330880.

The previous prime is 3226643549. The next prime is 3226643579. The reversal of 3226643574 is 4753466223.

It is a super-2 number, since 2×3226643574² = 20822457507270986952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3226643579) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1306689 + ... + 1309155.

It is an arithmetic number, because the mean of its divisors is an integer number (66636000).

Almost surely, 2^3226643574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3226643574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4264704000).

3226643574 is an abundant number, since it is smaller than the sum of its proper divisors (5302764426).

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

3226643574 is a wasteful number, since it uses less digits than its factorization.

3226643574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658.

The product of its digits is 725760, while the sum is 42.

The square root of 3226643574 is about 56803.5524769358. The cubic root of 3226643574 is about 1477.6911244650.

The spelling of 3226643574 in words is "three billion, two hundred twenty-six million, six hundred forty-three thousand, five hundred seventy-four".