38440436 has 6 divisors (see below), whose sum is σ = 67270770. Its totient is φ = 19220216.

The previous prime is 38440433. The next prime is 38440471. The reversal of 38440436 is 63404483.

38440436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 8737936 = 5450^2 + 2956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440433) 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 as a sum of consecutive naturals, namely, 4805051 + ... + 4805058.

It is an arithmetic number, because the mean of its divisors is an integer number (11211795).

Almost surely, 2^38440436 is an apocalyptic number.

It is an amenable number.

38440436 is a deficient number, since it is larger than the sum of its proper divisors (28830334).

38440436 is a wasteful number, since it uses less digits than its factorization.

38440436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9610113 (or 9610111 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 38440436 is about 6200.0351611906. The cubic root of 38440436 is about 337.4914448677.

The spelling of 38440436 in words is "thirty-eight million, four hundred forty thousand, four hundred thirty-six".