39999948 has 48 divisors (see below), whose sum is σ = 96132960. Its totient is φ = 12939264.

The previous prime is 39999943. The next prime is 39999979. The reversal of 39999948 is 84999993.

It is a junction number, because it is equal to n+sod(n) for n = 39999891 and 39999900.

It is not an unprimeable number, because it can be changed into a prime (39999943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69036 + ... + 69612.

It is an arithmetic number, because the mean of its divisors is an integer number (2002770).

Almost surely, 2^39999948 is an apocalyptic number.

It is an amenable number.

39999948 is an abundant number, since it is smaller than the sum of its proper divisors (56133012).

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

39999948 is a wasteful number, since it uses less digits than its factorization.

39999948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 744 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 60.

The square root of 39999948 is about 6324.5512093745. The cubic root of 39999948 is about 341.9950411374.

The spelling of 39999948 in words is "thirty-nine million, nine hundred ninety-nine thousand, nine hundred forty-eight".