1333881 has 16 divisors (see below), whose sum is σ = 1996800. Its totient is φ = 879984.

The previous prime is 1333867. The next prime is 1333883. The reversal of 1333881 is 1883331.

It is a de Polignac number, because none of the positive numbers 2^k-1333881 is a prime.

It is a super-2 number, since 2×1333881² = 3558477044322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

1333881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1333883) 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 15 ways as a sum of consecutive naturals, for example, 3235 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (124800).

2^1333881 is an apocalyptic number.

It is an amenable number.

1333881 is a deficient number, since it is larger than the sum of its proper divisors (662919).

1333881 is a wasteful number, since it uses less digits than its factorization.

1333881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1333881 is about 1154.9376606553. The cubic root of 1333881 is about 110.0793091961.

The spelling of 1333881 in words is "one million, three hundred thirty-three thousand, eight hundred eighty-one".