38243969 has 4 divisors (see below), whose sum is σ = 38348544. Its totient is φ = 38139396.

The previous prime is 38243957. The next prime is 38243971. The reversal of 38243969 is 96934283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38243969 is a prime.

It is a super-2 number, since 2×38243969² = 2925202329745922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38243929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51737 + ... + 52470.

It is an arithmetic number, because the mean of its divisors is an integer number (9587136).

Almost surely, 2^38243969 is an apocalyptic number.

It is an amenable number.

38243969 is a deficient number, since it is larger than the sum of its proper divisors (104575).

38243969 is a wasteful number, since it uses less digits than its factorization.

38243969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104574.

The product of its digits is 279936, while the sum is 44.

The square root of 38243969 is about 6184.1708417540. The cubic root of 38243969 is about 336.9154956636.

The spelling of 38243969 in words is "thirty-eight million, two hundred forty-three thousand, nine hundred sixty-nine".