3538944009 has 54 divisors (see below), whose sum is σ = 5732552670. Its totient is φ = 2103086592.

The previous prime is 3538943981. The next prime is 3538944053. The reversal of 3538944009 is 9004498353.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2058618384 + 1480325625 = 45372^2 + 38475^2 .

It is not a de Polignac number, because 3538944009 - 2³¹ = 1391460361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3538944089) 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, 937077 + ... + 940845.

Almost surely, 2^3538944009 is an apocalyptic number.

It is an amenable number.

3538944009 is a deficient number, since it is larger than the sum of its proper divisors (2193608661).

3538944009 is a wasteful number, since it uses less digits than its factorization.

3538944009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 3538944009 is about 59489.0242733901. The cubic root of 3538944009 is about 1523.9050111813.

The spelling of 3538944009 in words is "three billion, five hundred thirty-eight million, nine hundred forty-four thousand, nine".