840493533 has 8 divisors (see below), whose sum is σ = 1222536096. Its totient is φ = 509390000.

The previous prime is 840493499. The next prime is 840493541. The reversal of 840493533 is 335394048.

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 840493533 - 2¹⁰ = 840492509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 840493491 and 840493500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840493733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12734718 + ... + 12734783.

It is an arithmetic number, because the mean of its divisors is an integer number (152817012).

Almost surely, 2^840493533 is an apocalyptic number.

It is an amenable number.

840493533 is a deficient number, since it is larger than the sum of its proper divisors (382042563).

840493533 is a wasteful number, since it uses less digits than its factorization.

840493533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25469515.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 840493533 is about 28991.2664952741. The cubic root of 840493533 is about 943.7235485883.

The spelling of 840493533 in words is "eight hundred forty million, four hundred ninety-three thousand, five hundred thirty-three".