840498810 has 16 divisors (see below), whose sum is σ = 2017197216. Its totient is φ = 224133008.

The previous prime is 840498787. The next prime is 840498817. The reversal of 840498810 is 18894048.

It is a super-2 number, since 2×840498810² = 1412876499222832200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (840498817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14008284 + ... + 14008343.

It is an arithmetic number, because the mean of its divisors is an integer number (126074826).

Almost surely, 2^840498810 is an apocalyptic number.

840498810 is an abundant number, since it is smaller than the sum of its proper divisors (1176698406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840498810 is a wasteful number, since it uses less digits than its factorization.

840498810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28016637.

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 840498810 is about 28991.3575052980. The cubic root of 840498810 is about 943.7255236258.

The spelling of 840498810 in words is "eight hundred forty million, four hundred ninety-eight thousand, eight hundred ten".