814388 has 12 divisors (see below), whose sum is σ = 1445220. Its totient is φ = 401472.

The previous prime is 814381. The next prime is 814393. The reversal of 814388 is 883418.

814388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 487204 + 327184 = 698^2 + 572^2 .

It is a plaindrome in base 12 and base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 814388.

It is not an unprimeable number, because it can be changed into a prime (814381) by changing a digit.

814388 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 in 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (120435).

2⁸¹⁴³⁸⁸ is an apocalyptic number.

It is an amenable number.

814388 is a deficient number, since it is larger than the sum of its proper divisors (630832).

814388 is a wasteful number, since it uses less digits than its factorization.

814388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2864 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 814388 is about 902.4344851567. The cubic root of 814388 is about 93.3849997385.

The spelling of 814388 in words is "eight hundred fourteen thousand, three hundred eighty-eight".