1380018 has 8 divisors (see below), whose sum is σ = 2760048. Its totient is φ = 460004.

The previous prime is 1380013. The next prime is 1380031. The reversal of 1380018 is 8100831.

It is a happy number.

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

1380018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1379976 and 1380003.

It is not an unprimeable number, because it can be changed into a prime (1380013) 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, 114996 + ... + 115007.

It is an arithmetic number, because the mean of its divisors is an integer number (345006).

2^1380018 is an apocalyptic number.

1380018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1380018 is a wasteful number, since it uses less digits than its factorization.

1380018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230008.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1380018 is about 1174.7416737309. The cubic root of 1380018 is about 111.3341122092.

Adding to 1380018 its reverse (8100831), we get a palindrome (9480849).

The spelling of 1380018 in words is "one million, three hundred eighty thousand, eighteen".