1338281 has 8 divisors (see below), whose sum is σ = 1567104. Its totient is φ = 1118880.

The previous prime is 1338277. The next prime is 1338299. The reversal of 1338281 is 1828331.

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

It is not a de Polignac number, because 1338281 - 2² = 1338277 is a prime.

It is a super-2 number, since 2×1338281² = 3581992069922, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1338281.

It is not an unprimeable number, because it can be changed into a prime (1338241) 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, 2045 + ... + 2618.

It is an arithmetic number, because the mean of its divisors is an integer number (195888).

2^1338281 is an apocalyptic number.

It is an amenable number.

1338281 is a deficient number, since it is larger than the sum of its proper divisors (228823).

1338281 is an equidigital number, since it uses as much as digits as its factorization.

1338281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711.

The product of its digits is 1152, while the sum is 26.

The square root of 1338281 is about 1156.8409570896. The cubic root of 1338281 is about 110.2002138768.

The spelling of 1338281 in words is "one million, three hundred thirty-eight thousand, two hundred eighty-one".