3985158040 has 32 divisors (see below), whose sum is σ = 9438534000. Its totient is φ = 1510164864.

The previous prime is 3985158029. The next prime is 3985158041. The reversal of 3985158040 is 408515893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985158041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2621055 + ... + 2622574.

Almost surely, 2^3985158040 is an apocalyptic number.

It is an amenable number.

3985158040 is an abundant number, since it is smaller than the sum of its proper divisors (5453375960).

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

3985158040 is a wasteful number, since it uses less digits than its factorization.

3985158040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243659 (or 5243655 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 3985158040 is about 63128.1081611036. The cubic root of 3985158040 is about 1585.4352733827.

The spelling of 3985158040 in words is "three billion, nine hundred eighty-five million, one hundred fifty-eight thousand, forty".