3946225136 has 80 divisors (see below), whose sum is σ = 8895287808. Its totient is φ = 1661088000.

The previous prime is 3946225133. The next prime is 3946225177. The reversal of 3946225136 is 6315226493.

It is a junction number, because it is equal to n+sod(n) for n = 3946225093 and 3946225102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946225133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480541 + ... + 1483203.

Almost surely, 2^3946225136 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 3946225136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4447643904).

3946225136 is an abundant number, since it is smaller than the sum of its proper divisors (4949062672).

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

3946225136 is a wasteful number, since it uses less digits than its factorization.

3946225136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2904 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 3946225136 is about 62818.9870660137. The cubic root of 3946225136 is about 1580.2554113616.

The spelling of 3946225136 in words is "three billion, nine hundred forty-six million, two hundred twenty-five thousand, one hundred thirty-six".