39912948 has 18 divisors (see below), whose sum is σ = 100891154. Its totient is φ = 13304304.

The previous prime is 39912947. The next prime is 39912989. The reversal of 39912948 is 84921993.

It can be written as a sum of positive squares in only one way, i.e., 24088464 + 15824484 = 4908^2 + 3978^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39912941) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 554311 + ... + 554382.

Almost surely, 2^39912948 is an apocalyptic number.

It is an amenable number.

39912948 is an abundant number, since it is smaller than the sum of its proper divisors (60978206).

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

39912948 is a wasteful number, since it uses less digits than its factorization.

39912948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108703 (or 1108698 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 39912948 is about 6317.6695070255. The cubic root of 39912948 is about 341.7469144311.

The spelling of 39912948 in words is "thirty-nine million, nine hundred twelve thousand, nine hundred forty-eight".