42016433 has 2 divisors, whose sum is σ = 42016434. Its totient is φ = 42016432.

The previous prime is 42016421. The next prime is 42016441. The reversal of 42016433 is 33461024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41628304 + 388129 = 6452^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 42016433 - 2⁴ = 42016417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42016399 and 42016408.

It is not a weakly prime, because it can be changed into another prime (42016453) 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, 21008216 + 21008217.

It is an arithmetic number, because the mean of its divisors is an integer number (21008217).

Almost surely, 2^42016433 is an apocalyptic number.

It is an amenable number.

42016433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42016433 is an equidigital number, since it uses as much as digits as its factorization.

42016433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 42016433 is about 6482.0084078933. The cubic root of 42016433 is about 347.6479931376.

Adding to 42016433 its reverse (33461024), we get a palindrome (75477457).

The spelling of 42016433 in words is "forty-two million, sixteen thousand, four hundred thirty-three".