538380431 has 2 divisors, whose sum is σ = 538380432. Its totient is φ = 538380430.

The previous prime is 538380407. The next prime is 538380457. The reversal of 538380431 is 134083835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538380431 - 2²² = 534186127 is a prime.

It is a super-2 number, since 2×538380431² = 579706976967491522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 538380391 and 538380400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538380631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269190215 + 269190216.

It is an arithmetic number, because the mean of its divisors is an integer number (269190216).

Almost surely, 2^538380431 is an apocalyptic number.

538380431 is a deficient number, since it is larger than the sum of its proper divisors (1).

538380431 is an equidigital number, since it uses as much as digits as its factorization.

538380431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 538380431 is about 23203.0263327869. The cubic root of 538380431 is about 813.5103610933.

It can be divided in two parts, 5383804 and 31, that added together give a palindrome (5383835).

The spelling of 538380431 in words is "five hundred thirty-eight million, three hundred eighty thousand, four hundred thirty-one".