38381418 has 32 divisors (see below), whose sum is σ = 85536000. Its totient is φ = 12757248.

The previous prime is 38381417. The next prime is 38381437. The reversal of 38381418 is 81418383.

38381418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38381417) 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 15 ways as a sum of consecutive naturals, for example, 23455 + ... + 25037.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^38381418 is an apocalyptic number.

38381418 is an abundant number, since it is smaller than the sum of its proper divisors (47154582).

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

38381418 is a wasteful number, since it uses less digits than its factorization.

38381418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043 (or 2037 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 38381418 is about 6195.2738438264. The cubic root of 38381418 is about 337.3186383620.

The spelling of 38381418 in words is "thirty-eight million, three hundred eighty-one thousand, four hundred eighteen".