1040454321 has 16 divisors (see below), whose sum is σ = 1413078720. Its totient is φ = 680771520.

The previous prime is 1040454263. The next prime is 1040454329. The reversal of 1040454321 is 1234540401.

It is not a de Polignac number, because 1040454321 - 2¹⁵ = 1040421553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040454291 and 1040454300.

It is not an unprimeable number, because it can be changed into a prime (1040454329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112551 + ... + 121443.

It is an arithmetic number, because the mean of its divisors is an integer number (88317420).

Almost surely, 2^1040454321 is an apocalyptic number.

It is an amenable number.

1040454321 is a deficient number, since it is larger than the sum of its proper divisors (372624399).

1040454321 is an equidigital number, since it uses as much as digits as its factorization.

1040454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1040454321 is about 32256.0741721617. The cubic root of 1040454321 is about 1013.3069142634.

Adding to 1040454321 its reverse (1234540401), we get a palindrome (2274994722).

The spelling of 1040454321 in words is "one billion, forty million, four hundred fifty-four thousand, three hundred twenty-one".