42539467 has 2 divisors, whose sum is σ = 42539468. Its totient is φ = 42539466.

The previous prime is 42539429. The next prime is 42539473. The reversal of 42539467 is 76493524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42539467 - 2¹⁹ = 42015179 is a prime.

It is not a weakly prime, because it can be changed into another prime (42539407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21269733 + 21269734.

It is an arithmetic number, because the mean of its divisors is an integer number (21269734).

Almost surely, 2^42539467 is an apocalyptic number.

42539467 is a deficient number, since it is larger than the sum of its proper divisors (1).

42539467 is an equidigital number, since it uses as much as digits as its factorization.

42539467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 42539467 is about 6522.2286835100. The cubic root of 42539467 is about 349.0845929210.

The spelling of 42539467 in words is "forty-two million, five hundred thirty-nine thousand, four hundred sixty-seven".