39906948 has 48 divisors (see below), whose sum is σ = 95880960. Its totient is φ = 12912384.

The previous prime is 39906941. The next prime is 39906953. The reversal of 39906948 is 84960993.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 39906897 and 39906906.

It is not an unprimeable number, because it can be changed into a prime (39906941) 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 15 ways as a sum of consecutive naturals, for example, 97368 + ... + 97776.

It is an arithmetic number, because the mean of its divisors is an integer number (1997520).

Almost surely, 2^39906948 is an apocalyptic number.

It is an amenable number.

39906948 is an abundant number, since it is smaller than the sum of its proper divisors (55974012).

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

39906948 is a wasteful number, since it uses less digits than its factorization.

39906948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 39906948 is about 6317.1946305302. The cubic root of 39906948 is about 341.7297889589.

The spelling of 39906948 in words is "thirty-nine million, nine hundred six thousand, nine hundred forty-eight".