3538608021 has 72 divisors (see below), whose sum is σ = 5919713280. Its totient is φ = 2028768768.

The previous prime is 3538608019. The next prime is 3538608037. The reversal of 3538608021 is 1208068353.

It is not a de Polignac number, because 3538608021 - 2¹ = 3538608019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538608001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2766060 + ... + 2767338.

It is an arithmetic number, because the mean of its divisors is an integer number (82218240).

Almost surely, 2^3538608021 is an apocalyptic number.

It is an amenable number.

3538608021 is a deficient number, since it is larger than the sum of its proper divisors (2381105259).

3538608021 is a wasteful number, since it uses less digits than its factorization.

3538608021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3538608021 is about 59486.2002568663. The cubic root of 3538608021 is about 1523.8567830470.

The spelling of 3538608021 in words is "three billion, five hundred thirty-eight million, six hundred eight thousand, twenty-one".