38453838 has 16 divisors (see below), whose sum is σ = 80251776. Its totient is φ = 12260600.

The previous prime is 38453837. The next prime is 38453869. The reversal of 38453838 is 83835483.

It is a self number, because there is not a number n which added to its sum of digits gives 38453838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38453837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139188 + ... + 139463.

It is an arithmetic number, because the mean of its divisors is an integer number (5015736).

Almost surely, 2^38453838 is an apocalyptic number.

38453838 is an abundant number, since it is smaller than the sum of its proper divisors (41797938).

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

38453838 is a wasteful number, since it uses less digits than its factorization.

38453838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278679.

The product of its digits is 276480, while the sum is 42.

The square root of 38453838 is about 6201.1158673258. The cubic root of 38453838 is about 337.5306616862.

The spelling of 38453838 in words is "thirty-eight million, four hundred fifty-three thousand, eight hundred thirty-eight".