1854406 has 8 divisors (see below), whose sum is σ = 2789640. Its totient is φ = 924528.

The previous prime is 1854383. The next prime is 1854407. The reversal of 1854406 is 6044581.

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

It is a super-2 number, since 2×1854406² = 6877643225672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1854407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (348705).

2^1854406 is an apocalyptic number.

1854406 is a deficient number, since it is larger than the sum of its proper divisors (935234).

1854406 is a wasteful number, since it uses less digits than its factorization.

1854406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1854406 is about 1361.7657654678. The cubic root of 1854406 is about 122.8574813918.

Adding to 1854406 its reverse (6044581), we get a palindrome (7898987).

The spelling of 1854406 in words is "one million, eight hundred fifty-four thousand, four hundred six".