3952719840 has 96 divisors (see below), whose sum is σ = 12574499616. Its totient is φ = 1043609600.

The previous prime is 3952719803. The next prime is 3952719871. The reversal of 3952719840 is 489172593.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3952719840.

It is a congruent number.

It is an unprimeable number.

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, 7714 + ... + 89246.

It is an arithmetic number, because the mean of its divisors is an integer number (130984371).

Almost surely, 2^3952719840 is an apocalyptic number.

3952719840 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 3952719840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6287249808).

3952719840 is an abundant number, since it is smaller than the sum of its proper divisors (8621779776).

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

3952719840 is a wasteful number, since it uses less digits than its factorization.

3952719840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81652 (or 81644 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 3952719840 is about 62870.6596116185. The cubic root of 3952719840 is about 1581.1218652074.

The spelling of 3952719840 in words is "three billion, nine hundred fifty-two million, seven hundred nineteen thousand, eight hundred forty".