39744349 has 2 divisors, whose sum is σ = 39744350. Its totient is φ = 39744348.

The previous prime is 39744319. The next prime is 39744373. The reversal of 39744349 is 94344793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 1737124 = 6165^2 + 1318^2 .

It is an emirp because it is prime and its reverse (94344793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39744349 - 2²⁵ = 6189917 is a prime.

It is a super-2 number, since 2×39744349² = 3159226554867602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39744319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19872174 + 19872175.

It is an arithmetic number, because the mean of its divisors is an integer number (19872175).

Almost surely, 2^39744349 is an apocalyptic number.

It is an amenable number.

39744349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39744349 is an equidigital number, since it uses as much as digits as its factorization.

39744349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 39744349 is about 6304.3119370793. The cubic root of 39744349 is about 341.2650364818.

The spelling of 39744349 in words is "thirty-nine million, seven hundred forty-four thousand, three hundred forty-nine".