39918341 has 4 divisors (see below), whose sum is σ = 39946572. Its totient is φ = 39890112.

The previous prime is 39918323. The next prime is 39918343. The reversal of 39918341 is 14381993.

It is a happy number.

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 31192225 + 8726116 = 5585^2 + 2954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39918341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39918295 and 39918304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39918343) 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, 11876 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (9986643).

Almost surely, 2^39918341 is an apocalyptic number.

It is an amenable number.

39918341 is a deficient number, since it is larger than the sum of its proper divisors (28231).

39918341 is a wasteful number, since it uses less digits than its factorization.

39918341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28230.

The product of its digits is 23328, while the sum is 38.

The square root of 39918341 is about 6318.0963113900. The cubic root of 39918341 is about 341.7623059118.

The spelling of 39918341 in words is "thirty-nine million, nine hundred eighteen thousand, three hundred forty-one".