1854401 has 4 divisors (see below), whose sum is σ = 1862400. Its totient is φ = 1846404.

The previous prime is 1854383. The next prime is 1854407. The reversal of 1854401 is 1044581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1044581 = 617 ⋅1693.

It is a cyclic number.

It is not a de Polignac number, because 1854401 - 2⁶ = 1854337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1854407) 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, 3641 + ... + 4118.

It is an arithmetic number, because the mean of its divisors is an integer number (465600).

2^1854401 is an apocalyptic number.

It is an amenable number.

1854401 is a deficient number, since it is larger than the sum of its proper divisors (7999).

1854401 is an equidigital number, since it uses as much as digits as its factorization.

1854401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1854401 is about 1361.7639296148. The cubic root of 1854401 is about 122.8573709723.

Adding to 1854401 its reverse (1044581), we get a palindrome (2898982).

The spelling of 1854401 in words is "one million, eight hundred fifty-four thousand, four hundred one".