39495644 has 6 divisors (see below), whose sum is σ = 69117384. Its totient is φ = 19747820.

The previous prime is 39495637. The next prime is 39495649. The reversal of 39495644 is 44659493.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 39495595 and 39495604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39495649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936952 + ... + 4936959.

It is an arithmetic number, because the mean of its divisors is an integer number (11519564).

Almost surely, 2^39495644 is an apocalyptic number.

It is an amenable number.

39495644 is a deficient number, since it is larger than the sum of its proper divisors (29621740).

39495644 is a wasteful number, since it uses less digits than its factorization.

39495644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873915 (or 9873913 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The square root of 39495644 is about 6284.5559906806. Note that the first 3 decimals coincide. The cubic root of 39495644 is about 340.5517109556.

The spelling of 39495644 in words is "thirty-nine million, four hundred ninety-five thousand, six hundred forty-four".