42030899 has 2 divisors, whose sum is σ = 42030900. Its totient is φ = 42030898.

The previous prime is 42030893. The next prime is 42030917. The reversal of 42030899 is 99803024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42030899 - 2²⁰ = 40982323 is a prime.

It is equal to p_2549357 and since 42030899 and 2549357 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42030893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015449 + 21015450.

It is an arithmetic number, because the mean of its divisors is an integer number (21015450).

Almost surely, 2^42030899 is an apocalyptic number.

42030899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42030899 is an equidigital number, since it uses as much as digits as its factorization.

42030899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 42030899 is about 6483.1241697194. The cubic root of 42030899 is about 347.6878862497.

The spelling of 42030899 in words is "forty-two million, thirty thousand, eight hundred ninety-nine".