538539641 has 8 divisors (see below), whose sum is σ = 562714944. Its totient is φ = 514427760.

The previous prime is 538539619. The next prime is 538539643. The reversal of 538539641 is 146935835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538539641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538539592 and 538539601.

It is not an unprimeable number, because it can be changed into a prime (538539643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (70339368).

Almost surely, 2^538539641 is an apocalyptic number.

It is an amenable number.

538539641 is a deficient number, since it is larger than the sum of its proper divisors (24175303).

538539641 is a wasteful number, since it uses less digits than its factorization.

538539641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31711.

The product of its digits is 388800, while the sum is 44.

The square root of 538539641 is about 23206.4568816526. The cubic root of 538539641 is about 813.5905436880.

The spelling of 538539641 in words is "five hundred thirty-eight million, five hundred thirty-nine thousand, six hundred forty-one".