4045068281 has 16 divisors (see below), whose sum is σ = 4332042000. Its totient is φ = 3763660800.

The previous prime is 4045068229. The next prime is 4045068283. The reversal of 4045068281 is 1828605404.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 862303225 + 3182765056 = 29365^2 + 56416^2 .

It is a cyclic number.

It is not a de Polignac number, because 4045068281 - 2¹⁴ = 4045051897 is a prime.

It is a super-2 number, since 2×4045068281² = 32725154795904589922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4045068283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470095 + ... + 1472843.

It is an arithmetic number, because the mean of its divisors is an integer number (270752625).

Almost surely, 2^4045068281 is an apocalyptic number.

It is an amenable number.

4045068281 is a deficient number, since it is larger than the sum of its proper divisors (286973719).

4045068281 is a wasteful number, since it uses less digits than its factorization.

4045068281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 4045068281 is about 63600.8512600264. The cubic root of 4045068281 is about 1593.3405868449.

The spelling of 4045068281 in words is "four billion, forty-five million, sixty-eight thousand, two hundred eighty-one".