4405813381 has 6 divisors (see below), whose sum is σ = 4680224210. Its totient is φ = 4146647616.

The previous prime is 4405813367. The next prime is 4405813393. The reversal of 4405813381 is 1833185044.

It can be written as a sum of positive squares in 3 ways, for example, as 3211488900 + 1194324481 = 56670^2 + 34559^2 .

It is not a de Polignac number, because 4405813381 - 2⁷ = 4405813253 is a prime.

It is a super-2 number, since 2×4405813381² = 38822383096397302322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4405813381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405813781) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 7622226 + ... + 7622803.

Almost surely, 2^4405813381 is an apocalyptic number.

It is an amenable number.

4405813381 is a deficient number, since it is larger than the sum of its proper divisors (274410829).

4405813381 is a wasteful number, since it uses less digits than its factorization.

4405813381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245063 (or 15245046 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 4405813381 is about 66376.3013507080. The cubic root of 4405813381 is about 1639.3638943183.

The spelling of 4405813381 in words is "four billion, four hundred five million, eight hundred thirteen thousand, three hundred eighty-one".