42299071 has 2 divisors, whose sum is σ = 42299072. Its totient is φ = 42299070.

The previous prime is 42299063. The next prime is 42299083. The reversal of 42299071 is 17099224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42299071 - 2³ = 42299063 is a prime.

It is a super-2 number, since 2×42299071² = 3578422814926082, which contains 22 as substring.

It is equal to p_2564746 and since 42299071 and 2564746 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42299021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21149535 + 21149536.

It is an arithmetic number, because the mean of its divisors is an integer number (21149536).

Almost surely, 2^42299071 is an apocalyptic number.

42299071 is a deficient number, since it is larger than the sum of its proper divisors (1).

42299071 is an equidigital number, since it uses as much as digits as its factorization.

42299071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 42299071 is about 6503.7735969205. The cubic root of 42299071 is about 348.4257763596.

The spelling of 42299071 in words is "forty-two million, two hundred ninety-nine thousand, seventy-one".