3967759440 has 480 divisors, whose sum is σ = 14707630080. Its totient is φ = 955468800.

The previous prime is 3967759429. The next prime is 3967759441. The reversal of 3967759440 is 449577693.

It is a happy number.

3967759440 is a `hidden beast` number, since 3 + 9 + 6 + 7 + 7 + 594 + 40 = 666.

It is a super-2 number, since 2×3967759440² = 31486229947418227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3967759441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30288175 + ... + 30288305.

It is an arithmetic number, because the mean of its divisors is an integer number (30640896).

Almost surely, 2^3967759440 is an apocalyptic number.

3967759440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3967759440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7353815040).

3967759440 is an abundant number, since it is smaller than the sum of its proper divisors (10739870640).

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

3967759440 is a wasteful number, since it uses less digits than its factorization.

3967759440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The square root of 3967759440 is about 62990.1535162441. The cubic root of 3967759440 is about 1583.1246502684.

The spelling of 3967759440 in words is "three billion, nine hundred sixty-seven million, seven hundred fifty-nine thousand, four hundred forty".