38181798 has 24 divisors (see below), whose sum is σ = 82979208. Its totient is φ = 12688512.

The previous prime is 38181797. The next prime is 38181823. The reversal of 38181798 is 89718183.

38181798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38181797) 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 11 ways as a sum of consecutive naturals, for example, 3190 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (3457467).

Almost surely, 2^38181798 is an apocalyptic number.

38181798 is an abundant number, since it is smaller than the sum of its proper divisors (44797410).

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

38181798 is a wasteful number, since it uses less digits than its factorization.

38181798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468 (or 6465 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 38181798 is about 6179.1421734736. The cubic root of 38181798 is about 336.7328286573.

The spelling of 38181798 in words is "thirty-eight million, one hundred eighty-one thousand, seven hundred ninety-eight".