42029293 has 2 divisors, whose sum is σ = 42029294. Its totient is φ = 42029292.

The previous prime is 42029263. The next prime is 42029297. The reversal of 42029293 is 39292024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 4 = 6483^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 42029293 - 2⁵ = 42029261 is a prime.

It is a super-2 number, since 2×42029293² = 3532922940159698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42029297) 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, 21014646 + 21014647.

It is an arithmetic number, because the mean of its divisors is an integer number (21014647).

Almost surely, 2^42029293 is an apocalyptic number.

It is an amenable number.

42029293 is a deficient number, since it is larger than the sum of its proper divisors (1).

42029293 is an equidigital number, since it uses as much as digits as its factorization.

42029293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 42029293 is about 6483.0003084991. Note that the first 3 decimals coincide. The cubic root of 42029293 is about 347.6834578104.

The spelling of 42029293 in words is "forty-two million, twenty-nine thousand, two hundred ninety-three".