1363438 has 4 divisors (see below), whose sum is σ = 2045160. Its totient is φ = 681718.

The previous prime is 1363433. The next prime is 1363447. The reversal of 1363438 is 8343631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8343631 = 53 ⋅157427.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340858 + ... + 340861.

It is an arithmetic number, because the mean of its divisors is an integer number (511290).

2^1363438 is an apocalyptic number.

1363438 is a deficient number, since it is larger than the sum of its proper divisors (681722).

1363438 is an equidigital number, since it uses as much as digits as its factorization.

1363438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681721.

The product of its digits is 5184, while the sum is 28.

The square root of 1363438 is about 1167.6634789185. The cubic root of 1363438 is about 110.8864461110.

The spelling of 1363438 in words is "one million, three hundred sixty-three thousand, four hundred thirty-eight".