38440916 has 12 divisors (see below), whose sum is σ = 67473588. Its totient is φ = 19162752.

The previous prime is 38440879. The next prime is 38440937. The reversal of 38440916 is 61904483.

38440916 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 2 ways, for example, as 22600516 + 15840400 = 4754^2 + 3980^2 .

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 3 ways as a sum of consecutive naturals, for example, 12911 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (5622799).

Almost surely, 2^38440916 is an apocalyptic number.

It is an amenable number.

38440916 is a deficient number, since it is larger than the sum of its proper divisors (29032672).

38440916 is a wasteful number, since it uses less digits than its factorization.

38440916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28858 (or 28856 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38440916 is about 6200.0738705277. The cubic root of 38440916 is about 337.4928495970.

The spelling of 38440916 in words is "thirty-eight million, four hundred forty thousand, nine hundred sixteen".