38478113 has 4 divisors (see below), whose sum is σ = 39518100. Its totient is φ = 37438128.

The previous prime is 38478109. The next prime is 38478127. The reversal of 38478113 is 31187483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31550689 + 6927424 = 5617^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 38478113 - 2² = 38478109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38478313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519938 + ... + 520011.

It is an arithmetic number, because the mean of its divisors is an integer number (9879525).

Almost surely, 2^38478113 is an apocalyptic number.

It is an amenable number.

38478113 is a deficient number, since it is larger than the sum of its proper divisors (1039987).

38478113 is a wasteful number, since it uses less digits than its factorization.

38478113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039986.

The product of its digits is 16128, while the sum is 35.

The square root of 38478113 is about 6203.0728675391. The cubic root of 38478113 is about 337.6016717917.

The spelling of 38478113 in words is "thirty-eight million, four hundred seventy-eight thousand, one hundred thirteen".