38547940 has 12 divisors (see below), whose sum is σ = 80950716. Its totient is φ = 15419168.

The previous prime is 38547937. The next prime is 38547961. The reversal of 38547940 is 4974583.

It can be written as a sum of positive squares in 2 ways, for example, as 23970816 + 14577124 = 4896^2 + 3818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38547893 and 38547902.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 963679 + ... + 963718.

It is an arithmetic number, because the mean of its divisors is an integer number (6745893).

Almost surely, 2^38547940 is an apocalyptic number.

It is an amenable number.

38547940 is an abundant number, since it is smaller than the sum of its proper divisors (42402776).

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

38547940 is a wasteful number, since it uses less digits than its factorization.

38547940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927406 (or 1927404 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 38547940 is about 6208.6987364503. The cubic root of 38547940 is about 337.8057658820.

The spelling of 38547940 in words is "thirty-eight million, five hundred forty-seven thousand, nine hundred forty".