38726749 has 4 divisors (see below), whose sum is σ = 39009564. Its totient is φ = 38443936.

The previous prime is 38726747. The next prime is 38726761. The reversal of 38726749 is 94762783.

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 28164249 + 10562500 = 5307^2 + 3250^2 .

It is a cyclic number.

It is not a de Polignac number, because 38726749 - 2¹ = 38726747 is a prime.

It is a super-2 number, since 2×38726749² = 2999522176218002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38726699 and 38726708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38726741) 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, 141202 + ... + 141475.

It is an arithmetic number, because the mean of its divisors is an integer number (9752391).

Almost surely, 2^38726749 is an apocalyptic number.

It is an amenable number.

38726749 is a deficient number, since it is larger than the sum of its proper divisors (282815).

38726749 is a wasteful number, since it uses less digits than its factorization.

38726749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282814.

The product of its digits is 508032, while the sum is 46.

The square root of 38726749 is about 6223.0819535018. The cubic root of 38726749 is about 338.3272771584.

The spelling of 38726749 in words is "thirty-eight million, seven hundred twenty-six thousand, seven hundred forty-nine".