42344479 has 2 divisors, whose sum is σ = 42344480. Its totient is φ = 42344478.

The previous prime is 42344473. The next prime is 42344503. The reversal of 42344479 is 97444324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42344479 - 2⁵ = 42344447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42344473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172239 + 21172240.

It is an arithmetic number, because the mean of its divisors is an integer number (21172240).

Almost surely, 2^42344479 is an apocalyptic number.

42344479 is a deficient number, since it is larger than the sum of its proper divisors (1).

42344479 is an equidigital number, since it uses as much as digits as its factorization.

42344479 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 42344479 is about 6507.2635569800. The cubic root of 42344479 is about 348.5504099844.

The spelling of 42344479 in words is "forty-two million, three hundred forty-four thousand, four hundred seventy-nine".