38936440 has 16 divisors (see below), whose sum is σ = 87607080. Its totient is φ = 15574560.

The previous prime is 38936437. The next prime is 38936441. The reversal of 38936440 is 4463983.

38936440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38936440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38936441) 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, 486666 + ... + 486745.

Almost surely, 2^38936440 is an apocalyptic number.

It is an amenable number.

38936440 is an abundant number, since it is smaller than the sum of its proper divisors (48670640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38936440 is a wasteful number, since it uses less digits than its factorization.

38936440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973422 (or 973418 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 38936440 is about 6239.9070505898. The cubic root of 38936440 is about 338.9368172928.

The spelling of 38936440 in words is "thirty-eight million, nine hundred thirty-six thousand, four hundred forty".