42434479 has 2 divisors, whose sum is σ = 42434480. Its totient is φ = 42434478.

The previous prime is 42434459. The next prime is 42434489. The reversal of 42434479 is 97443424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42434479 - 2⁷ = 42434351 is a prime.

It is a super-3 number, since 3×42434479³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42434419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21217239 + 21217240.

It is an arithmetic number, because the mean of its divisors is an integer number (21217240).

Almost surely, 2^42434479 is an apocalyptic number.

42434479 is a deficient number, since it is larger than the sum of its proper divisors (1).

42434479 is an equidigital number, since it uses as much as digits as its factorization.

42434479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 37.

The square root of 42434479 is about 6514.1752355920. The cubic root of 42434479 is about 348.7971744530.

The spelling of 42434479 in words is "forty-two million, four hundred thirty-four thousand, four hundred seventy-nine".