1401806 has 8 divisors (see below), whose sum is σ = 2403120. Its totient is φ = 600768.

The previous prime is 1401793. The next prime is 1401809. The reversal of 1401806 is 6081041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401809) 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, 50051 + ... + 50078.

It is an arithmetic number, because the mean of its divisors is an integer number (300390).

2^1401806 is an apocalyptic number.

1401806 is a deficient number, since it is larger than the sum of its proper divisors (1001314).

1401806 is a wasteful number, since it uses less digits than its factorization.

1401806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100138.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1401806 is about 1183.9788849469. The cubic root of 1401806 is about 111.9169771629.

Adding to 1401806 its reverse (6081041), we get a palindrome (7482847).

The spelling of 1401806 in words is "one million, four hundred one thousand, eight hundred six".