840352 has 12 divisors (see below), whose sum is σ = 1654506. Its totient is φ = 420160.

The previous prime is 840347. The next prime is 840353. The reversal of 840352 is 253048.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 1296 = 916^2 + 36^2 .

It is a plaindrome in base 13.

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

840352 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13099 + ... + 13162.

2⁸⁴⁰³⁵² is an apocalyptic number.

It is an amenable number.

840352 is a deficient number, since it is larger than the sum of its proper divisors (814154).

840352 is a wasteful number, since it uses less digits than its factorization.

840352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26271 (or 26263 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 840352 is about 916.7071506212. The cubic root of 840352 is about 94.3670573553.

The spelling of 840352 in words is "eight hundred forty thousand, three hundred fifty-two".