1804874 has 4 divisors (see below), whose sum is σ = 2707314. Its totient is φ = 902436.

The previous prime is 1804871. The next prime is 1804919. The reversal of 1804874 is 4784081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4784081 = 113 ⋅42337.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 1225 = 1343^2 + 35^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1804874.

It is not an unprimeable number, because it can be changed into a prime (1804871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451217 + ... + 451220.

2^1804874 is an apocalyptic number.

1804874 is a deficient number, since it is larger than the sum of its proper divisors (902440).

1804874 is an equidigital number, since it uses as much as digits as its factorization.

1804874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902439.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1804874 is about 1343.4559910916. The cubic root of 1804874 is about 121.7537359695.

The spelling of 1804874 in words is "one million, eight hundred four thousand, eight hundred seventy-four".