39649848 has 64 divisors (see below), whose sum is σ = 119957760. Its totient is φ = 10661376.

The previous prime is 39649823. The next prime is 39649849. The reversal of 39649848 is 84894693.

It is a happy number.

It is a super-2 number, since 2×39649848² = 3144220892846208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 39649848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39649849) 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, 4086 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (1874340).

Almost surely, 2^39649848 is an apocalyptic number.

It is an amenable number.

39649848 is an abundant number, since it is smaller than the sum of its proper divisors (80307912).

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

39649848 is a wasteful number, since it uses less digits than its factorization.

39649848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13916 (or 13912 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 39649848 is about 6296.8125269854. The cubic root of 39649848 is about 340.9943440667.

The spelling of 39649848 in words is "thirty-nine million, six hundred forty-nine thousand, eight hundred forty-eight".