38778282 has 24 divisors (see below), whose sum is σ = 84206304. Its totient is φ = 12897384.

The previous prime is 38778269. The next prime is 38778287. The reversal of 38778282 is 28287783.

It is not an unprimeable number, because it can be changed into a prime (38778287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6913 + ... + 11195.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^38778282 is an apocalyptic number.

38778282 is an abundant number, since it is smaller than the sum of its proper divisors (45428022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38778282 is a wasteful number, since it uses less digits than its factorization.

38778282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794 (or 4791 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 38778282 is about 6227.2210495533. The cubic root of 38778282 is about 338.4772793511.

It can be divided in two parts, 38778 and 282, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 38778282 in words is "thirty-eight million, seven hundred seventy-eight thousand, two hundred eighty-two".