840516334 has 16 divisors (see below), whose sum is σ = 1441340928. Its totient is φ = 360107352.

The previous prime is 840516269. The next prime is 840516337. The reversal of 840516334 is 433615048.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 840516334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840516337) 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, 48607 + ... + 63589.

It is an arithmetic number, because the mean of its divisors is an integer number (90083808).

Almost surely, 2^840516334 is an apocalyptic number.

840516334 is a deficient number, since it is larger than the sum of its proper divisors (600824594).

840516334 is a wasteful number, since it uses less digits than its factorization.

840516334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18999.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 840516334 is about 28991.6597317228. The cubic root of 840516334 is about 943.7320823229.

The spelling of 840516334 in words is "eight hundred forty million, five hundred sixteen thousand, three hundred thirty-four".