38280505 has 8 divisors (see below), whose sum is σ = 47418624. Its totient is φ = 29636400.

The previous prime is 38280499. The next prime is 38280509. The reversal of 38280505 is 50508283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38280505 - 2¹³ = 38272313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38280509) 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 in 7 ways as a sum of consecutive naturals, for example, 123331 + ... + 123640.

It is an arithmetic number, because the mean of its divisors is an integer number (5927328).

Almost surely, 2^38280505 is an apocalyptic number.

It is an amenable number.

38280505 is a deficient number, since it is larger than the sum of its proper divisors (9138119).

38280505 is a wasteful number, since it uses less digits than its factorization.

38280505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247007.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 38280505 is about 6187.1241299977. The cubic root of 38280505 is about 337.0227511518.

Adding to 38280505 its reverse (50508283), we get a palindrome (88788788).

The spelling of 38280505 in words is "thirty-eight million, two hundred eighty thousand, five hundred five".