38470378 has 4 divisors (see below), whose sum is σ = 57705570. Its totient is φ = 19235188.

The previous prime is 38470373. The next prime is 38470379. The reversal of 38470378 is 87307483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87307483 = 53 ⋅1647311.

It can be written as a sum of positive squares in only one way, i.e., 33258289 + 5212089 = 5767^2 + 2283^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 38470378.

It is not an unprimeable number, because it can be changed into a prime (38470373) by changing a digit.

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 as a sum of consecutive naturals, namely, 9617593 + ... + 9617596.

Almost surely, 2^38470378 is an apocalyptic number.

38470378 is a deficient number, since it is larger than the sum of its proper divisors (19235192).

38470378 is a wasteful number, since it uses less digits than its factorization.

38470378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19235191.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 38470378 is about 6202.4493548920. The cubic root of 38470378 is about 337.5790483336.

The spelling of 38470378 in words is "thirty-eight million, four hundred seventy thousand, three hundred seventy-eight".