1040022405 has 24 divisors (see below), whose sum is σ = 1822967640. Its totient is φ = 548444160.

The previous prime is 1040022397. The next prime is 1040022407. The reversal of 1040022405 is 5042200401.

It can be written as a sum of positive squares in 4 ways, for example, as 29354724 + 1010667681 = 5418^2 + 31791^2 .

It is not a de Polignac number, because 1040022405 - 2³ = 1040022397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040022407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125836 + ... + 133845.

It is an arithmetic number, because the mean of its divisors is an integer number (75956985).

Almost surely, 2^1040022405 is an apocalyptic number.

1040022405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040022405 is a deficient number, since it is larger than the sum of its proper divisors (782945235).

1040022405 is a wasteful number, since it uses less digits than its factorization.

1040022405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259781 (or 259778 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1040022405 is about 32249.3783661019. The cubic root of 1040022405 is about 1013.1666793565.

Adding to 1040022405 its reverse (5042200401), we get a palindrome (6082222806).

The spelling of 1040022405 in words is "one billion, forty million, twenty-two thousand, four hundred five".