42104473 has 2 divisors, whose sum is σ = 42104474. Its totient is φ = 42104472.

The previous prime is 42104449. The next prime is 42104477. The reversal of 42104473 is 37440124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25887744 + 16216729 = 5088^2 + 4027^2 .

It is a cyclic number.

It is not a de Polignac number, because 42104473 - 2⁵ = 42104441 is a prime.

It is not a weakly prime, because it can be changed into another prime (42104477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052236 + 21052237.

It is an arithmetic number, because the mean of its divisors is an integer number (21052237).

Almost surely, 2^42104473 is an apocalyptic number.

It is an amenable number.

42104473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42104473 is an equidigital number, since it uses as much as digits as its factorization.

42104473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42104473 is about 6488.7959591900. The cubic root of 42104473 is about 347.8906408698.

Adding to 42104473 its reverse (37440124), we get a palindrome (79544597).

The spelling of 42104473 in words is "forty-two million, one hundred four thousand, four hundred seventy-three".