4099243445 has 54 divisors (see below), whose sum is σ = 5748446466. Its totient is φ = 2803743360.

The previous prime is 4099243441. The next prime is 4099243457. The reversal of 4099243445 is 5443429904.

It can be written as a sum of positive squares in 3 ways, for example, as 650148004 + 3449095441 = 25498^2 + 58729^2 .

It is not a de Polignac number, because 4099243445 - 2² = 4099243441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4099243396 and 4099243405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4099243441) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 29921417 + ... + 29921553.

Almost surely, 2^4099243445 is an apocalyptic number.

It is an amenable number.

4099243445 is a deficient number, since it is larger than the sum of its proper divisors (1649203021).

4099243445 is a wasteful number, since it uses less digits than its factorization.

4099243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 4099243445 is about 64025.3343997515. The cubic root of 4099243445 is about 1600.4222121435.

The spelling of 4099243445 in words is "four billion, ninety-nine million, two hundred forty-three thousand, four hundred forty-five".