38457743 has 4 divisors (see below), whose sum is σ = 38471880. Its totient is φ = 38443608.

The previous prime is 38457739. The next prime is 38457751. The reversal of 38457743 is 34775483.

38457743 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, and also an emirpimes, since its reverse is a distinct semiprime: 34775483 = 233 ⋅149251.

It is a cyclic number.

It is not a de Polignac number, because 38457743 - 2² = 38457739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38457743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38457733) 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, 1553 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (9617970).

Almost surely, 2^38457743 is an apocalyptic number.

38457743 is a deficient number, since it is larger than the sum of its proper divisors (14137).

38457743 is a wasteful number, since it uses less digits than its factorization.

38457743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14136.

The product of its digits is 282240, while the sum is 41.

The square root of 38457743 is about 6201.4307220189. The cubic root of 38457743 is about 337.5420867497.

The spelling of 38457743 in words is "thirty-eight million, four hundred fifty-seven thousand, seven hundred forty-three".