38181740 has 12 divisors (see below), whose sum is σ = 80181696. Its totient is φ = 15272688.

The previous prime is 38181733. The next prime is 38181797. The reversal of 38181740 is 4718183.

38181740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38181697 and 38181706.

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, 954524 + ... + 954563.

It is an arithmetic number, because the mean of its divisors is an integer number (6681808).

Almost surely, 2^38181740 is an apocalyptic number.

It is an amenable number.

38181740 is an abundant number, since it is smaller than the sum of its proper divisors (41999956).

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

38181740 is a wasteful number, since it uses less digits than its factorization.

38181740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909096 (or 1909094 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 38181740 is about 6179.1374802637. The cubic root of 38181740 is about 336.7326581528.

The spelling of 38181740 in words is "thirty-eight million, one hundred eighty-one thousand, seven hundred forty".