1381684833 has 12 divisors (see below), whose sum is σ = 2029594320. Its totient is φ = 905510616.

The previous prime is 1381684823. The next prime is 1381684841. The reversal of 1381684833 is 3384861831.

1381684833 is a `hidden beast` number, since 1 + 3 + 8 + 168 + 483 + 3 = 666.

It is not a de Polignac number, because 1381684833 - 2⁴ = 1381684817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381684813) 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, 1300491 + ... + 1301552.

It is an arithmetic number, because the mean of its divisors is an integer number (169132860).

Almost surely, 2^1381684833 is an apocalyptic number.

It is an amenable number.

1381684833 is a deficient number, since it is larger than the sum of its proper divisors (647909487).

1381684833 is a wasteful number, since it uses less digits than its factorization.

1381684833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602108 (or 2602105 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 1381684833 is about 37171.0214145374. The cubic root of 1381684833 is about 1113.7891855901.

The spelling of 1381684833 in words is "one billion, three hundred eighty-one million, six hundred eighty-four thousand, eight hundred thirty-three".