4381987244 has 12 divisors (see below), whose sum is σ = 7677473664. Its totient is φ = 2188423344.

The previous prime is 4381987231. The next prime is 4381987297. The reversal of 4381987244 is 4427891834.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4381987192 and 4381987201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638732 + ... + 645555.

It is an arithmetic number, because the mean of its divisors is an integer number (639789472).

Almost surely, 2^4381987244 is an apocalyptic number.

It is an amenable number.

4381987244 is a deficient number, since it is larger than the sum of its proper divisors (3295486420).

4381987244 is a wasteful number, since it uses less digits than its factorization.

4381987244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285144 (or 1285142 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 4381987244 is about 66196.5803044236. The cubic root of 4381987244 is about 1636.4033867789.

The spelling of 4381987244 in words is "four billion, three hundred eighty-one million, nine hundred eighty-seven thousand, two hundred forty-four".