840385333 has 12 divisors (see below), whose sum is σ = 903883360. Its totient is φ = 779176152.

The previous prime is 840385319. The next prime is 840385373. The reversal of 840385333 is 333583048.

It is not a de Polignac number, because 840385333 - 2¹³ = 840377141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 840385292 and 840385301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840385303) 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, 31960 + ... + 51982.

Almost surely, 2^840385333 is an apocalyptic number.

It is an amenable number.

840385333 is a deficient number, since it is larger than the sum of its proper divisors (63498027).

840385333 is a wasteful number, since it uses less digits than its factorization.

840385333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20136 (or 20089 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 840385333 is about 28989.4003559922. The cubic root of 840385333 is about 943.6830504500.

The spelling of 840385333 in words is "eight hundred forty million, three hundred eighty-five thousand, three hundred thirty-three".