38408305 has 16 divisors (see below), whose sum is σ = 50576400. Its totient is φ = 27825408.

The previous prime is 38408303. The next prime is 38408311. The reversal of 38408305 is 50380483.

It can be written as a sum of positive squares in 8 ways, for example, as 2396304 + 36012001 = 1548^2 + 6001^2 .

It is not a de Polignac number, because 38408305 - 2¹ = 38408303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38408303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2130 + ... + 9019.

It is an arithmetic number, because the mean of its divisors is an integer number (3161025).

Almost surely, 2^38408305 is an apocalyptic number.

It is an amenable number.

38408305 is a deficient number, since it is larger than the sum of its proper divisors (12168095).

38408305 is a wasteful number, since it uses less digits than its factorization.

38408305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 38408305 is about 6197.4434245098. The cubic root of 38408305 is about 337.3973862713.

Adding to 38408305 its reverse (50380483), we get a palindrome (88788788).

The spelling of 38408305 in words is "thirty-eight million, four hundred eight thousand, three hundred five".