38199505 has 12 divisors (see below), whose sum is σ = 46440180. Its totient is φ = 30164192.

The previous prime is 38199487. The next prime is 38199509. The reversal of 38199505 is 50599183.

It can be written as a sum of positive squares in 2 ways, for example, as 5400976 + 32798529 = 2324^2 + 5727^2 .

It is not a de Polignac number, because 38199505 - 2²³ = 29810897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38199509) 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 11 ways as a sum of consecutive naturals, for example, 33891 + ... + 34999.

It is an arithmetic number, because the mean of its divisors is an integer number (3870015).

Almost surely, 2^38199505 is an apocalyptic number.

It is an amenable number.

38199505 is a deficient number, since it is larger than the sum of its proper divisors (8240675).

38199505 is an equidigital number, since it uses as much as digits as its factorization.

38199505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 38199505 is about 6180.5748114556. The cubic root of 38199505 is about 336.7848744578.

The spelling of 38199505 in words is "thirty-eight million, one hundred ninety-nine thousand, five hundred five".