1333306381 has 12 divisors (see below), whose sum is σ = 1473746400. Its totient is φ = 1205305640.

The previous prime is 1333306363. The next prime is 1333306391. The reversal of 1333306381 is 1836033331.

It is a de Polignac number, because none of the positive numbers 2^k-1333306381 is a prime.

It is a super-2 number, since 2×1333306381² = 3555411811230634322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333306321) 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, 9121 + ... + 52438.

It is an arithmetic number, because the mean of its divisors is an integer number (122812200).

Almost surely, 2^1333306381 is an apocalyptic number.

1333306381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1333306381 is a deficient number, since it is larger than the sum of its proper divisors (140440019).

1333306381 is a wasteful number, since it uses less digits than its factorization.

1333306381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61760 (or 61749 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 1333306381 is about 36514.4681051224. The cubic root of 1333306381 is about 1100.6350000279.

The spelling of 1333306381 in words is "one billion, three hundred thirty-three million, three hundred six thousand, three hundred eighty-one".