38343145 has 4 divisors (see below), whose sum is σ = 46011780. Its totient is φ = 30674512.

The previous prime is 38343127. The next prime is 38343157. The reversal of 38343145 is 54134383.

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 11634921 + 26708224 = 3411^2 + 5168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38343145 is a prime.

It is an unprimeable number.

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, 3834310 + ... + 3834319.

It is an arithmetic number, because the mean of its divisors is an integer number (11502945).

Almost surely, 2^38343145 is an apocalyptic number.

It is an amenable number.

38343145 is a deficient number, since it is larger than the sum of its proper divisors (7668635).

38343145 is an equidigital number, since it uses as much as digits as its factorization.

38343145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668634.

The product of its digits is 17280, while the sum is 31.

The square root of 38343145 is about 6192.1841865371. The cubic root of 38343145 is about 337.2064791407.

The spelling of 38343145 in words is "thirty-eight million, three hundred forty-three thousand, one hundred forty-five".