38919370 has 32 divisors (see below), whose sum is σ = 80281728. Its totient is φ = 13307328.

The previous prime is 38919367. The next prime is 38919379. The reversal of 38919370 is 7391983.

38919370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38919370² = 3029434722393800, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (38919379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42457 + ... + 43363.

It is an arithmetic number, because the mean of its divisors is an integer number (2508804).

Almost surely, 2^38919370 is an apocalyptic number.

38919370 is an abundant number, since it is smaller than the sum of its proper divisors (41362358).

38919370 is a wasteful number, since it uses less digits than its factorization.

38919370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 38919370 is about 6238.5390918067. The cubic root of 38919370 is about 338.8872793179.

The spelling of 38919370 in words is "thirty-eight million, nine hundred nineteen thousand, three hundred seventy".