3981037146 has 16 divisors (see below), whose sum is σ = 8131480704. Its totient is φ = 1298777984.

The previous prime is 3981037141. The next prime is 3981037157. The reversal of 3981037146 is 6417301893.

It is a junction number, because it is equal to n+sod(n) for n = 3981037098 and 3981037107.

It is not an unprimeable number, because it can be changed into a prime (3981037141) 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, 7058295 + ... + 7058858.

It is an arithmetic number, because the mean of its divisors is an integer number (508217544).

Almost surely, 2^3981037146 is an apocalyptic number.

3981037146 is an abundant number, since it is smaller than the sum of its proper divisors (4150443558).

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

3981037146 is a wasteful number, since it uses less digits than its factorization.

3981037146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14117205.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 3981037146 is about 63095.4605815664. The cubic root of 3981037146 is about 1584.8886063149. Note that the first 3 decimals are identical.

The spelling of 3981037146 in words is "three billion, nine hundred eighty-one million, thirty-seven thousand, one hundred forty-six".