1394638 has 32 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 560952.

The previous prime is 1394633. The next prime is 1394669. The reversal of 1394638 is 8364931.

It is a d-powerful number, because it can be written as 1 + 3 + 9⁴ + 4¹⁰ + 6⁷ + 3¹⁰ + 8³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12981 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^1394638 is an apocalyptic number.

1394638 is a deficient number, since it is larger than the sum of its proper divisors (1197362).

1394638 is a wasteful number, since it uses less digits than its factorization.

1394638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 135 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 1394638 is about 1180.9479243387. The cubic root of 1394638 is about 111.7258921983.

The spelling of 1394638 in words is "one million, three hundred ninety-four thousand, six hundred thirty-eight".