1040854 has 4 divisors (see below), whose sum is σ = 1561284. Its totient is φ = 520426.

The previous prime is 1040833. The next prime is 1040857. The reversal of 1040854 is 4580401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4580401 = 7 ⋅654343.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260212 + ... + 260215.

It is an arithmetic number, because the mean of its divisors is an integer number (390321).

2^1040854 is an apocalyptic number.

1040854 is a deficient number, since it is larger than the sum of its proper divisors (520430).

1040854 is an equidigital number, since it uses as much as digits as its factorization.

1040854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520429.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1040854 is about 1020.2225247464. Note that the first 3 decimals coincide. The cubic root of 1040854 is about 101.3436647861.

The spelling of 1040854 in words is "one million, forty thousand, eight hundred fifty-four".