38945380 has 12 divisors (see below), whose sum is σ = 81785340. Its totient is φ = 15578144.

The previous prime is 38945377. The next prime is 38945399. The reversal of 38945380 is 8354983.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 13704804 = 5024^2 + 3702^2 .

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973615 + ... + 973654.

It is an arithmetic number, because the mean of its divisors is an integer number (6815445).

Almost surely, 2^38945380 is an apocalyptic number.

It is an amenable number.

38945380 is an abundant number, since it is smaller than the sum of its proper divisors (42839960).

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

38945380 is a wasteful number, since it uses less digits than its factorization.

38945380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947278 (or 1947276 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 38945380 is about 6240.6233662992. The cubic root of 38945380 is about 338.9627558333.

The spelling of 38945380 in words is "thirty-eight million, nine hundred forty-five thousand, three hundred eighty".