1040452405 has 8 divisors (see below), whose sum is σ = 1248861600. Its totient is φ = 832149456.

The previous prime is 1040452397. The next prime is 1040452423. The reversal of 1040452405 is 5042540401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040452405 - 2³ = 1040452397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040452405.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3135 + ... + 45724.

It is an arithmetic number, because the mean of its divisors is an integer number (156107700).

Almost surely, 2^1040452405 is an apocalyptic number.

It is an amenable number.

1040452405 is a deficient number, since it is larger than the sum of its proper divisors (208409195).

1040452405 is an equidigital number, since it uses as much as digits as its factorization.

1040452405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53123.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1040452405 is about 32256.0444723156. The cubic root of 1040452405 is about 1013.3062922604.

Adding to 1040452405 its reverse (5042540401), we get a palindrome (6082992806).

The spelling of 1040452405 in words is "one billion, forty million, four hundred fifty-two thousand, four hundred five".