3980648940 has 96 divisors (see below), whose sum is σ = 11995107264. Its totient is φ = 982671360.

The previous prime is 3980648927. The next prime is 3980648963. The reversal of 3980648940 is 498460893.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 30232 + ... + 94208.

It is an arithmetic number, because the mean of its divisors is an integer number (124949034).

Almost surely, 2^3980648940 is an apocalyptic number.

3980648940 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 3980648940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5997553632).

3980648940 is an abundant number, since it is smaller than the sum of its proper divisors (8014458324).

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

3980648940 is a wasteful number, since it uses less digits than its factorization.

3980648940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64067 (or 64065 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 3980648940 is about 63092.3841679802. The cubic root of 3980648940 is about 1584.8370884781.

The spelling of 3980648940 in words is "three billion, nine hundred eighty million, six hundred forty-eight thousand, nine hundred forty".