1804954 has 4 divisors (see below), whose sum is σ = 2707434. Its totient is φ = 902476.

The previous prime is 1804951. The next prime is 1804961. The reversal of 1804954 is 4594081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4594081 = 919 ⋅4999.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 429025 = 1173^2 + 655^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1804951) 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 as a sum of consecutive naturals, namely, 451237 + ... + 451240.

2^1804954 is an apocalyptic number.

1804954 is a deficient number, since it is larger than the sum of its proper divisors (902480).

1804954 is an equidigital number, since it uses as much as digits as its factorization.

1804954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902479.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1804954 is about 1343.4857647180. The cubic root of 1804954 is about 121.7555348310.

The spelling of 1804954 in words is "one million, eight hundred four thousand, nine hundred fifty-four".