4013734581 has 12 divisors (see below), whose sum is σ = 5954309452. Its totient is φ = 2603503296.

The previous prime is 4013734567. The next prime is 4013734597. The reversal of 4013734581 is 1854373104.

It is a happy number.

4013734581 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 73 + 4 + 581 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2602530225 + 1411204356 = 51015^2 + 37566^2 .

It is not a de Polignac number, because 4013734581 - 2⁷ = 4013734453 is a prime.

It is a super-2 number, since 2×4013734581² = 32220130573430491122, 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 (4013734511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6026296 + ... + 6026961.

Almost surely, 2^4013734581 is an apocalyptic number.

It is an amenable number.

4013734581 is a deficient number, since it is larger than the sum of its proper divisors (1940574871).

4013734581 is a wasteful number, since it uses less digits than its factorization.

4013734581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12053300 (or 12053297 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4013734581 is about 63354.0415522167. The cubic root of 4013734581 is about 1589.2158338053.

The spelling of 4013734581 in words is "four billion, thirteen million, seven hundred thirty-four thousand, five hundred eighty-one".