39495641 has 4 divisors (see below), whose sum is σ = 41818932. Its totient is φ = 37172352.

The previous prime is 39495637. The next prime is 39495649. The reversal of 39495641 is 14659493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26822041 + 12673600 = 5179^2 + 3560^2 .

It is a cyclic number.

It is not a de Polignac number, because 39495641 - 2² = 39495637 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 1161620 + ... + 1161653.

It is an arithmetic number, because the mean of its divisors is an integer number (10454733).

Almost surely, 2^39495641 is an apocalyptic number.

It is an amenable number.

39495641 is a deficient number, since it is larger than the sum of its proper divisors (2323291).

39495641 is a wasteful number, since it uses less digits than its factorization.

39495641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323290.

The product of its digits is 116640, while the sum is 41.

The square root of 39495641 is about 6284.5557520003. Note that the first 3 decimals coincide. The cubic root of 39495641 is about 340.5517023331.

The spelling of 39495641 in words is "thirty-nine million, four hundred ninety-five thousand, six hundred forty-one".