42436479 has 4 divisors (see below), whose sum is σ = 56581976. Its totient is φ = 28290984.

The previous prime is 42436469. The next prime is 42436501. The reversal of 42436479 is 97463424.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42436479 - 2⁸ = 42436223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42436409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072744 + ... + 7072749.

It is an arithmetic number, because the mean of its divisors is an integer number (14145494).

Almost surely, 2^42436479 is an apocalyptic number.

42436479 is a deficient number, since it is larger than the sum of its proper divisors (14145497).

42436479 is a wasteful number, since it uses less digits than its factorization.

42436479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145496.

The product of its digits is 145152, while the sum is 39.

The square root of 42436479 is about 6514.3287451586. The cubic root of 42436479 is about 348.8026541431.

The spelling of 42436479 in words is "forty-two million, four hundred thirty-six thousand, four hundred seventy-nine".