42030473 has 2 divisors, whose sum is σ = 42030474. Its totient is φ = 42030472.

The previous prime is 42030437. The next prime is 42030481. The reversal of 42030473 is 37403024.

It is a happy number.

Together with previous prime (42030437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25684624 + 16345849 = 5068^2 + 4043^2 .

It is a cyclic number.

It is not a de Polignac number, because 42030473 - 2⁸ = 42030217 is a prime.

It is not a weakly prime, because it can be changed into another prime (42030493) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015236 + 21015237.

It is an arithmetic number, because the mean of its divisors is an integer number (21015237).

Almost surely, 2^42030473 is an apocalyptic number.

It is an amenable number.

42030473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42030473 is an equidigital number, since it uses as much as digits as its factorization.

42030473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 42030473 is about 6483.0913151058. The cubic root of 42030473 is about 347.6867115937.

Adding to 42030473 its reverse (37403024), we get a palindrome (79433497).

The spelling of 42030473 in words is "forty-two million, thirty thousand, four hundred seventy-three".