3974566320 has 160 divisors (see below), whose sum is σ = 13859797440. Its totient is φ = 1059837696.

The previous prime is 3974566291. The next prime is 3974566373. The reversal of 3974566320 is 236654793.

3974566320 is a `hidden beast` number, since 3 + 9 + 7 + 4 + 5 + 6 + 632 + 0 = 666.

3974566320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163602 + ... + 186318.

It is an arithmetic number, because the mean of its divisors is an integer number (86623734).

Almost surely, 2^3974566320 is an apocalyptic number.

3974566320 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 3974566320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6929898720).

3974566320 is an abundant number, since it is smaller than the sum of its proper divisors (9885231120).

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

3974566320 is an equidigital number, since it uses as much as digits as its factorization.

3974566320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751 (or 22727 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The square root of 3974566320 is about 63044.1616646617. The cubic root of 3974566320 is about 1584.0294416015.

The spelling of 3974566320 in words is "three billion, nine hundred seventy-four million, five hundred sixty-six thousand, three hundred twenty".