3886978032 has 60 divisors (see below), whose sum is σ = 12432163120. Its totient is φ = 1110564864.

The previous prime is 3886978021. The next prime is 3886978037. The reversal of 3886978032 is 2308796883.

It is a self number, because there is not a number n which added to its sum of digits gives 3886978032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3886978037) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1927057 + ... + 1929072.

Almost surely, 2^3886978032 is an apocalyptic number.

It is an amenable number.

3886978032 is an abundant number, since it is smaller than the sum of its proper divisors (8545185088).

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

3886978032 is a wasteful number, since it uses less digits than its factorization.

3886978032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856150 (or 3856141 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 3886978032 is about 62345.6336241761. The cubic root of 3886978032 is about 1572.3070511065.

The spelling of 3886978032 in words is "three billion, eight hundred eighty-six million, nine hundred seventy-eight thousand, thirty-two".