1364638 has 12 divisors (see below), whose sum is σ = 2250360. Its totient is φ = 620180.

The previous prime is 1364633. The next prime is 1364663. The reversal of 1364638 is 8364631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364633) 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 5 ways as a sum of consecutive naturals, for example, 2578 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (187530).

2^1364638 is an apocalyptic number.

1364638 is a deficient number, since it is larger than the sum of its proper divisors (885722).

1364638 is a wasteful number, since it uses less digits than its factorization.

1364638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663 (or 5652 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 1364638 is about 1168.1772125838. The cubic root of 1364638 is about 110.9189679948.

It can be divided in two parts, 1364 and 638, that added together give a palindrome (2002).

The spelling of 1364638 in words is "one million, three hundred sixty-four thousand, six hundred thirty-eight".