39245005 has 4 divisors (see below), whose sum is σ = 47094012. Its totient is φ = 31396000.

The previous prime is 39244999. The next prime is 39245009. The reversal of 39245005 is 50054293.

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 7918596 + 31326409 = 2814^2 + 5597^2 .

It is not a de Polignac number, because 39245005 - 2⁹ = 39244493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39245009) 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, 3924496 + ... + 3924505.

It is an arithmetic number, because the mean of its divisors is an integer number (11773503).

Almost surely, 2^39245005 is an apocalyptic number.

It is an amenable number.

39245005 is a deficient number, since it is larger than the sum of its proper divisors (7849007).

39245005 is an equidigital number, since it uses as much as digits as its factorization.

39245005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849006.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 39245005 is about 6264.5833859882. The cubic root of 39245005 is about 339.8298023597.

Adding to 39245005 its reverse (50054293), we get a palindrome (89299298).

The spelling of 39245005 in words is "thirty-nine million, two hundred forty-five thousand, five".