1138284 has 36 divisors (see below), whose sum is σ = 3289104. Its totient is φ = 325152.

The previous prime is 1138273. The next prime is 1138363. The reversal of 1138284 is 4828311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2007 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (91364).

2^1138284 is an apocalyptic number.

1138284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1138284 is an abundant number, since it is smaller than the sum of its proper divisors (2150820).

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

1138284 is a wasteful number, since it uses less digits than its factorization.

1138284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534 (or 4529 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1138284 is about 1066.9039319451. The cubic root of 1138284 is about 104.4119508933.

Adding to 1138284 its sum of digits (27), we get a palindrome (1138311).

It can be divided in two parts, 11 and 38284, that multiplied together give a palindrome (421124).

The spelling of 1138284 in words is "one million, one hundred thirty-eight thousand, two hundred eighty-four".