38443445 has 16 divisors (see below), whose sum is σ = 47497968. Its totient is φ = 29852160.

The previous prime is 38443439. The next prime is 38443451. The reversal of 38443445 is 54434483.

38443445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38443439) and next prime (38443451).

It can be written as a sum of positive squares in 8 ways, for example, as 1196836 + 37246609 = 1094^2 + 6103^2 .

It is not a de Polignac number, because 38443445 - 2⁴ = 38443429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56447 + ... + 57123.

It is an arithmetic number, because the mean of its divisors is an integer number (2968623).

Almost surely, 2^38443445 is an apocalyptic number.

It is an amenable number.

38443445 is a deficient number, since it is larger than the sum of its proper divisors (9054523).

38443445 is a wasteful number, since it uses less digits than its factorization.

38443445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its digits is 92160, while the sum is 35.

The square root of 38443445 is about 6200.2778163563. The cubic root of 38443445 is about 337.5002505714.

It can be divided in two parts, 3 and 8443445, that added together give a palindrome (8443448).

The spelling of 38443445 in words is "thirty-eight million, four hundred forty-three thousand, four hundred forty-five".