1338642 has 24 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 431640.

The previous prime is 1338641. The next prime is 1338647. The reversal of 1338642 is 2468331.

It is a happy number.

1338642 is a `hidden beast` number, since 13 + 3 + 8 + 642 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (124800).

2^1338642 is an apocalyptic number.

1338642 is an abundant number, since it is smaller than the sum of its proper divisors (1656558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1338642 is a wasteful number, since it uses less digits than its factorization.

1338642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2435 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1338642 is about 1156.9969749312. The cubic root of 1338642 is about 110.2101217862.

The spelling of 1338642 in words is "one million, three hundred thirty-eight thousand, six hundred forty-two".