38940975 has 36 divisors (see below), whose sum is σ = 73426600. Its totient is φ = 19673280.

The previous prime is 38940973. The next prime is 38940977. The reversal of 38940975 is 57904983.

It is an interprime number because it is at equal distance from previous prime (38940973) and next prime (38940977).

It is not a de Polignac number, because 38940975 - 2¹ = 38940973 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38940975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38940973) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 280 + ... + 8829.

Almost surely, 2^38940975 is an apocalyptic number.

38940975 is a deficient number, since it is larger than the sum of its proper divisors (34485625).

38940975 is a wasteful number, since it uses less digits than its factorization.

38940975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9144 (or 9136 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 38940975 is about 6240.2704268325. The cubic root of 38940975 is about 338.9499756504.

The spelling of 38940975 in words is "thirty-eight million, nine hundred forty thousand, nine hundred seventy-five".