38130743 has 4 divisors (see below), whose sum is σ = 43578000. Its totient is φ = 32683488.

The previous prime is 38130733. The next prime is 38130749. The reversal of 38130743 is 34703183.

38130743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38130743 - 2⁸ = 38130487 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 (38130749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723618 + ... + 2723631.

It is an arithmetic number, because the mean of its divisors is an integer number (10894500).

Almost surely, 2^38130743 is an apocalyptic number.

38130743 is a deficient number, since it is larger than the sum of its proper divisors (5447257).

38130743 is an equidigital number, since it uses as much as digits as its factorization.

38130743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447256.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 38130743 is about 6175.0095546485. The cubic root of 38130743 is about 336.5826736628.

The spelling of 38130743 in words is "thirty-eight million, one hundred thirty thousand, seven hundred forty-three".