1049993405 has 12 divisors (see below), whose sum is σ = 1301954076. Its totient is φ = 812894400.

The previous prime is 1049993353. The next prime is 1049993407. The reversal of 1049993405 is 5043999401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115713049 + 934280356 = 10757^2 + 30566^2 .

It is not a de Polignac number, because 1049993405 - 2¹⁸ = 1049731261 is a prime.

It is a super-2 number, since 2×1049993405² = 2204972301086988050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049993407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104456 + ... + 114065.

It is an arithmetic number, because the mean of its divisors is an integer number (108496173).

Almost surely, 2^1049993405 is an apocalyptic number.

It is an amenable number.

1049993405 is a deficient number, since it is larger than the sum of its proper divisors (251960671).

1049993405 is an equidigital number, since it uses as much as digits as its factorization.

1049993405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218588 (or 218557 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1049993405 is about 32403.6017288202. The cubic root of 1049993405 is about 1016.3942288314.

The spelling of 1049993405 in words is "one billion, forty-nine million, nine hundred ninety-three thousand, four hundred five".