39816648 has 48 divisors (see below), whose sum is σ = 111321600. Its totient is φ = 12843360.

The previous prime is 39816643. The next prime is 39816697. The reversal of 39816648 is 84661893.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (39816643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6688 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (2319200).

Almost surely, 2^39816648 is an apocalyptic number.

It is an amenable number.

39816648 is an abundant number, since it is smaller than the sum of its proper divisors (71504952).

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

39816648 is a wasteful number, since it uses less digits than its factorization.

39816648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882 (or 17875 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 39816648 is about 6310.0434229885. The cubic root of 39816648 is about 341.4718430310.

The spelling of 39816648 in words is "thirty-nine million, eight hundred sixteen thousand, six hundred forty-eight".