38743389 has 6 divisors (see below), whose sum is σ = 55962686. Its totient is φ = 25828920.

The previous prime is 38743379. The next prime is 38743409. The reversal of 38743389 is 98334783.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 736164 = 6165^2 + 858^2 .

It is not a de Polignac number, because 38743389 - 2⁴ = 38743373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38743349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2152402 + ... + 2152419.

Almost surely, 2^38743389 is an apocalyptic number.

It is an amenable number.

38743389 is a deficient number, since it is larger than the sum of its proper divisors (17219297).

38743389 is a wasteful number, since it uses less digits than its factorization.

38743389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304827 (or 4304824 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 38743389 is about 6224.4187680457. The cubic root of 38743389 is about 338.3757273890.

The spelling of 38743389 in words is "thirty-eight million, seven hundred forty-three thousand, three hundred eighty-nine".