1401818 has 8 divisors (see below), whose sum is σ = 2293920. Its totient is φ = 637180.

The previous prime is 1401817. The next prime is 1401821. The reversal of 1401818 is 8181041.

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

1401818 is a modest number, since divided by 1818 gives 140 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401793 and 1401802.

It is not an unprimeable number, because it can be changed into a prime (1401811) 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, 31838 + ... + 31881.

It is an arithmetic number, because the mean of its divisors is an integer number (286740).

2^1401818 is an apocalyptic number.

1401818 is a deficient number, since it is larger than the sum of its proper divisors (892102).

1401818 is a wasteful number, since it uses less digits than its factorization.

1401818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63732.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1401818 is about 1183.9839525940. The cubic root of 1401818 is about 111.9172965128.

Adding to 1401818 its reverse (8181041), we get a palindrome (9582859).

The spelling of 1401818 in words is "one million, four hundred one thousand, eight hundred eighteen".