3987449242 has 8 divisors (see below), whose sum is σ = 6835627296. Its totient is φ = 1708906812.

The previous prime is 3987449237. The next prime is 3987449251. The reversal of 3987449242 is 2429447893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×3987449242⁴ (a number of 40 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3987449242.

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 3 ways as a sum of consecutive naturals, for example, 142408888 + ... + 142408915.

It is an arithmetic number, because the mean of its divisors is an integer number (854453412).

Almost surely, 2^3987449242 is an apocalyptic number.

3987449242 is a deficient number, since it is larger than the sum of its proper divisors (2848178054).

3987449242 is a wasteful number, since it uses less digits than its factorization.

3987449242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284817812.

The product of its digits is 3483648, while the sum is 52.

The square root of 3987449242 is about 63146.2527946037. The cubic root of 3987449242 is about 1585.7390552734.

The spelling of 3987449242 in words is "three billion, nine hundred eighty-seven million, four hundred forty-nine thousand, two hundred forty-two".