1883281 has 8 divisors (see below), whose sum is σ = 1971200. Its totient is φ = 1797120.

The previous prime is 1883279. The next prime is 1883293. The reversal of 1883281 is 1823881.

1883281 = T₁₁₁₉ + T₁₁₂₀ + T₁₁₂₁.

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

It is a cyclic number.

It is not a de Polignac number, because 1883281 - 2¹ = 1883279 is a prime.

It is a super-2 number, since 2×1883281² = 7093494649922, which contains 22 as substring.

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

It is a Duffinian number.

1883281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1883201) 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, 2065 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (246400).

2^1883281 is an apocalyptic number.

1883281 is the 1121-st centered triangular number.

It is an amenable number.

1883281 is a deficient number, since it is larger than the sum of its proper divisors (87919).

1883281 is an equidigital number, since it uses as much as digits as its factorization.

1883281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its digits is 3072, while the sum is 31.

The square root of 1883281 is about 1372.3268561097. The cubic root of 1883281 is about 123.4918722489.

The spelling of 1883281 in words is "one million, eight hundred eighty-three thousand, two hundred eighty-one".