1061404385 has 8 divisors (see below), whose sum is σ = 1308109416. Its totient is φ = 826174080.

The previous prime is 1061404343. The next prime is 1061404387. The reversal of 1061404385 is 5834041601.

It can be written as a sum of positive squares in 4 ways, for example, as 678967249 + 382437136 = 26057^2 + 19556^2 .

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

It is not a de Polignac number, because 1061404385 - 2¹⁸ = 1061142241 is a prime.

It is a super-2 number, since 2×1061404385² = 2253158536994456450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061404387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2868476 + ... + 2868845.

It is an arithmetic number, because the mean of its divisors is an integer number (163513677).

Almost surely, 2^1061404385 is an apocalyptic number.

It is an amenable number.

1061404385 is a deficient number, since it is larger than the sum of its proper divisors (246705031).

1061404385 is an equidigital number, since it uses as much as digits as its factorization.

1061404385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737363.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1061404385 is about 32579.2017244131. The cubic root of 1061404385 is about 1020.0629158295.

Adding to 1061404385 its reverse (5834041601), we get a palindrome (6895445986).

The spelling of 1061404385 in words is "one billion, sixty-one million, four hundred four thousand, three hundred eighty-five".