39948128 has 24 divisors (see below), whose sum is σ = 85798440. Its totient is φ = 18158080.

The previous prime is 39948101. The next prime is 39948151. The reversal of 39948128 is 82184993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56393 + ... + 57096.

It is an arithmetic number, because the mean of its divisors is an integer number (3574935).

Almost surely, 2^39948128 is an apocalyptic number.

It is an amenable number.

39948128 is an abundant number, since it is smaller than the sum of its proper divisors (45850312).

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

39948128 is a wasteful number, since it uses less digits than its factorization.

39948128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113510 (or 113502 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 39948128 is about 6320.4531483114. The cubic root of 39948128 is about 341.8472922654.

The spelling of 39948128 in words is "thirty-nine million, nine hundred forty-eight thousand, one hundred twenty-eight".