840350 has 36 divisors (see below), whose sum is σ = 1823544. Its totient is φ = 288120.

The previous prime is 840347. The next prime is 840353. The reversal of 840350 is 53048.

It is an interprime number because it is at equal distance from previous prime (840347) and next prime (840353).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 120047 + ... + 120053.

It is an arithmetic number, because the mean of its divisors is an integer number (50654).

2⁸⁴⁰³⁵⁰ is an apocalyptic number.

840350 is an abundant number, since it is smaller than the sum of its proper divisors (983194).

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

840350 is an frugal number, since it uses more digits than its factorization.

840350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 840350 is about 916.7060597596. The cubic root of 840350 is about 94.3669824922.

Adding to 840350 its reverse (53048), we get a palindrome (893398).

The spelling of 840350 in words is "eight hundred forty thousand, three hundred fifty".