1380818 has 8 divisors (see below), whose sum is σ = 2091648. Its totient is φ = 683604.

The previous prime is 1380817. The next prime is 1380853. The reversal of 1380818 is 8180831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1380811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146 + ... + 3557.

It is an arithmetic number, because the mean of its divisors is an integer number (261456).

2^1380818 is an apocalyptic number.

1380818 is a deficient number, since it is larger than the sum of its proper divisors (710830).

1380818 is a wasteful number, since it uses less digits than its factorization.

1380818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1380818 is about 1175.0821247896. The cubic root of 1380818 is about 111.3556216109.

The spelling of 1380818 in words is "one million, three hundred eighty thousand, eight hundred eighteen".