3996926208 has 432 divisors, whose sum is σ = 13375118400. Its totient is φ = 1190661120.

The previous prime is 3996926191. The next prime is 3996926243. The reversal of 3996926208 is 8026296993.

3996926208 is a `hidden beast` number, since 3 + 9 + 9 + 6 + 9 + 2 + 620 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×3996926208² = 31950838224394518528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67744483 + ... + 67744541.

Almost surely, 2^3996926208 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 3996926208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6687559200).

3996926208 is an abundant number, since it is smaller than the sum of its proper divisors (9378192192).

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

3996926208 is an frugal number, since it uses more digits than its factorization.

3996926208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 3996926208 is about 63221.2480737291. The cubic root of 3996926208 is about 1586.9943360492.

The spelling of 3996926208 in words is "three billion, nine hundred ninety-six million, nine hundred twenty-six thousand, two hundred eight".