538444743 has 32 divisors (see below), whose sum is σ = 801615360. Its totient is φ = 319904640.

The previous prime is 538444741. The next prime is 538444747. The reversal of 538444743 is 347444835.

It is not a de Polignac number, because 538444743 - 2¹ = 538444741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538444695 and 538444704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538444741) 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, 76605 + ... + 83337.

It is an arithmetic number, because the mean of its divisors is an integer number (25050480).

Almost surely, 2^538444743 is an apocalyptic number.

538444743 is a deficient number, since it is larger than the sum of its proper divisors (263170617).

538444743 is a wasteful number, since it uses less digits than its factorization.

538444743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839.

The product of its digits is 645120, while the sum is 42.

The square root of 538444743 is about 23204.4121451072. The cubic root of 538444743 is about 813.5427523123.

The spelling of 538444743 in words is "five hundred thirty-eight million, four hundred forty-four thousand, seven hundred forty-three".