42018479 has 2 divisors, whose sum is σ = 42018480. Its totient is φ = 42018478.

The previous prime is 42018461. The next prime is 42018503. The reversal of 42018479 is 97481024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42018479 - 2¹² = 42014383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42018979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21009239 + 21009240.

It is an arithmetic number, because the mean of its divisors is an integer number (21009240).

Almost surely, 2^42018479 is an apocalyptic number.

42018479 is a deficient number, since it is larger than the sum of its proper divisors (1).

42018479 is an equidigital number, since it uses as much as digits as its factorization.

42018479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 42018479 is about 6482.1662274274. The cubic root of 42018479 is about 347.6536359793.

The spelling of 42018479 in words is "forty-two million, eighteen thousand, four hundred seventy-nine".