39948018 has 32 divisors (see below), whose sum is σ = 87393600. Its totient is φ = 12072960.

The previous prime is 39948017. The next prime is 39948037. The reversal of 39948018 is 81084993.

39948018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39948017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37558 + ... + 38606.

It is an arithmetic number, because the mean of its divisors is an integer number (2731050).

Almost surely, 2^39948018 is an apocalyptic number.

39948018 is an abundant number, since it is smaller than the sum of its proper divisors (47445582).

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

39948018 is a wasteful number, since it uses less digits than its factorization.

39948018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 39948018 is about 6320.4444463977. Note that the first 5 decimals coincide. The cubic root of 39948018 is about 341.8469784982.

The spelling of 39948018 in words is "thirty-nine million, nine hundred forty-eight thousand, eighteen".