840033819 has 6 divisors (see below), whose sum is σ = 1213382196. Its totient is φ = 560022540.

The previous prime is 840033809. The next prime is 840033823. The reversal of 840033819 is 918330048.

It is not a de Polignac number, because 840033819 - 2¹¹ = 840031771 is a prime.

It is a super-2 number, since 2×840033819² = 1411313634127449522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840033809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46668537 + ... + 46668554.

It is an arithmetic number, because the mean of its divisors is an integer number (202230366).

Almost surely, 2^840033819 is an apocalyptic number.

840033819 is a deficient number, since it is larger than the sum of its proper divisors (373348377).

840033819 is a wasteful number, since it uses less digits than its factorization.

840033819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93337097 (or 93337094 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 840033819 is about 28983.3369196854. The cubic root of 840033819 is about 943.5514584087.

The spelling of 840033819 in words is "eight hundred forty million, thirty-three thousand, eight hundred nineteen".