39242641 has 4 divisors (see below), whose sum is σ = 39631284. Its totient is φ = 38854000.

The previous prime is 39242629. The next prime is 39242653. The reversal of 39242641 is 14624293.

It is a happy number.

39242641 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, and also an emirpimes, since its reverse is a distinct semiprime: 14624293 = 809 ⋅18077.

It is an interprime number because it is at equal distance from previous prime (39242629) and next prime (39242653).

It can be written as a sum of positive squares in 2 ways, for example, as 29811600 + 9431041 = 5460^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 39242641 - 2⁷ = 39242513 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39242141) 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, 194170 + ... + 194371.

It is an arithmetic number, because the mean of its divisors is an integer number (9907821).

Almost surely, 2^39242641 is an apocalyptic number.

It is an amenable number.

39242641 is a deficient number, since it is larger than the sum of its proper divisors (388643).

39242641 is a wasteful number, since it uses less digits than its factorization.

39242641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388642.

The product of its digits is 10368, while the sum is 31.

The square root of 39242641 is about 6264.3947034011. The cubic root of 39242641 is about 339.8229787840.

The spelling of 39242641 in words is "thirty-nine million, two hundred forty-two thousand, six hundred forty-one".