4045452849 has 32 divisors (see below), whose sum is σ = 6512230400. Its totient is φ = 2472593040.

The previous prime is 4045452841. The next prime is 4045452863. The reversal of 4045452849 is 9482545404.

It is a happy number.

4045452849 is a `hidden beast` number, since 40 + 4 + 545 + 28 + 49 = 666.

It is not a de Polignac number, because 4045452849 - 2³ = 4045452841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4045452841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111289 + ... + 143094.

It is an arithmetic number, because the mean of its divisors is an integer number (203507200).

Almost surely, 2^4045452849 is an apocalyptic number.

It is an amenable number.

4045452849 is a deficient number, since it is larger than the sum of its proper divisors (2466777551).

4045452849 is a wasteful number, since it uses less digits than its factorization.

4045452849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254442 (or 254436 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The square root of 4045452849 is about 63603.8744810409. The cubic root of 4045452849 is about 1593.3910786490.

It can be divided in two parts, 404 and 5452849, that added together give a triangular number (5453253 = T₃₃₀₂).

The spelling of 4045452849 in words is "four billion, forty-five million, four hundred fifty-two thousand, eight hundred forty-nine".