38378505 has 16 divisors (see below), whose sum is σ = 66988224. Its totient is φ = 18607680.

The previous prime is 38378477. The next prime is 38378531. The reversal of 38378505 is 50587383.

It is not a de Polignac number, because 38378505 - 2⁶ = 38378441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116134 + ... + 116463.

It is an arithmetic number, because the mean of its divisors is an integer number (4186764).

Almost surely, 2^38378505 is an apocalyptic number.

It is an amenable number.

38378505 is a deficient number, since it is larger than the sum of its proper divisors (28609719).

38378505 is a wasteful number, since it uses less digits than its factorization.

38378505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232616.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 38378505 is about 6195.0387407990. The cubic root of 38378505 is about 337.3101044229.

It can be divided in two parts, 38378 and 505, that added together give a palindrome (38883).

The spelling of 38378505 in words is "thirty-eight million, three hundred seventy-eight thousand, five hundred five".