1040641 has 4 divisors (see below), whose sum is σ = 1189312. Its totient is φ = 891972.

The previous prime is 1040629. The next prime is 1040651. The reversal of 1040641 is 1460401.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1040641 - 2¹⁵ = 1007873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040651) 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, 74325 + ... + 74338.

It is an arithmetic number, because the mean of its divisors is an integer number (297328).

2^1040641 is an apocalyptic number.

It is an amenable number.

1040641 is a deficient number, since it is larger than the sum of its proper divisors (148671).

1040641 is an equidigital number, since it uses as much as digits as its factorization.

1040641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148670.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1040641 is about 1020.1181304143. The cubic root of 1040641 is about 101.3367513371.

It can be divided in two parts, 1040 and 641, that added together give a square (1681 = 41²).

The spelling of 1040641 in words is "one million, forty thousand, six hundred forty-one".