39440953 has 4 divisors (see below), whose sum is σ = 40087588. Its totient is φ = 38794320.

The previous prime is 39440923. The next prime is 39440963. The reversal of 39440953 is 35904493.

39440953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 21233664 + 18207289 = 4608^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 39440953 - 2²⁵ = 5886521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39440923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323226 + ... + 323347.

It is an arithmetic number, because the mean of its divisors is an integer number (10021897).

Almost surely, 2^39440953 is an apocalyptic number.

It is an amenable number.

39440953 is a deficient number, since it is larger than the sum of its proper divisors (646635).

39440953 is an equidigital number, since it uses as much as digits as its factorization.

39440953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646634.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 39440953 is about 6280.2032610418. The cubic root of 39440953 is about 340.3944470542.

The spelling of 39440953 in words is "thirty-nine million, four hundred forty thousand, nine hundred fifty-three".