3887890042 has 16 divisors (see below), whose sum is σ = 5914592640. Its totient is φ = 1916433792.

The previous prime is 3887890037. The next prime is 3887890043. The reversal of 3887890042 is 2400987883.

It is not an unprimeable number, because it can be changed into a prime (3887890043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88053 + ... + 124615.

It is an arithmetic number, because the mean of its divisors is an integer number (369662040).

Almost surely, 2^3887890042 is an apocalyptic number.

3887890042 is a deficient number, since it is larger than the sum of its proper divisors (2026702598).

3887890042 is a wasteful number, since it uses less digits than its factorization.

3887890042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37317.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 3887890042 is about 62352.9473401218. The cubic root of 3887890042 is about 1572.4300127497.

The spelling of 3887890042 in words is "three billion, eight hundred eighty-seven million, eight hundred ninety thousand, forty-two".