3965926720 has 336 divisors, whose sum is σ = 11675059200. Its totient is φ = 1277337600.

The previous prime is 3965926717. The next prime is 3965926721. The reversal of 3965926720 is 276295693.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965926721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19929181 + ... + 19929379.

It is an arithmetic number, because the mean of its divisors is an integer number (34747200).

Almost surely, 2^3965926720 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 3965926720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5837529600).

3965926720 is an abundant number, since it is smaller than the sum of its proper divisors (7709132480).

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

3965926720 is a wasteful number, since it uses less digits than its factorization.

3965926720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 3965926720 is about 62975.6041654227. The cubic root of 3965926720 is about 1582.8808627192.

The spelling of 3965926720 in words is "three billion, nine hundred sixty-five million, nine hundred twenty-six thousand, seven hundred twenty".