3880537640 has 128 divisors (see below), whose sum is σ = 10590912000. Its totient is φ = 1249198080.

The previous prime is 3880537627. The next prime is 3880537651. The reversal of 3880537640 is 467350883.

It is a junction number, because it is equal to n+sod(n) for n = 3880537591 and 3880537600.

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, 2850560 + ... + 2851920.

It is an arithmetic number, because the mean of its divisors is an integer number (82741500).

Almost surely, 2^3880537640 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 3880537640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5295456000).

3880537640 is an abundant number, since it is smaller than the sum of its proper divisors (6710374360).

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

3880537640 is a wasteful number, since it uses less digits than its factorization.

3880537640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995 (or 1991 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 3880537640 is about 62293.9615051090. The cubic root of 3880537640 is about 1571.4381780286.

The spelling of 3880537640 in words is "three billion, eight hundred eighty million, five hundred thirty-seven thousand, six hundred forty".