38149205 has 4 divisors (see below), whose sum is σ = 45779052. Its totient is φ = 30519360.

The previous prime is 38149201. The next prime is 38149211. The reversal of 38149205 is 50294183.

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 7524049 + 30625156 = 2743^2 + 5534^2 .

It is not a de Polignac number, because 38149205 - 2² = 38149201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38149201) 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, 3814916 + ... + 3814925.

It is an arithmetic number, because the mean of its divisors is an integer number (11444763).

Almost surely, 2^38149205 is an apocalyptic number.

It is an amenable number.

38149205 is a deficient number, since it is larger than the sum of its proper divisors (7629847).

38149205 is an equidigital number, since it uses as much as digits as its factorization.

38149205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629846.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 38149205 is about 6176.5042702163. The cubic root of 38149205 is about 336.6369866765.

The spelling of 38149205 in words is "thirty-eight million, one hundred forty-nine thousand, two hundred five".