42459479 has 4 divisors (see below), whose sum is σ = 42472584. Its totient is φ = 42446376.

The previous prime is 42459463. The next prime is 42459499. The reversal of 42459479 is 97495424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42459479 - 2⁴ = 42459463 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 (42459499) 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, 2249 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (10618146).

Almost surely, 2^42459479 is an apocalyptic number.

42459479 is a deficient number, since it is larger than the sum of its proper divisors (13105).

42459479 is an equidigital number, since it uses as much as digits as its factorization.

42459479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13104.

The product of its digits is 362880, while the sum is 44.

The square root of 42459479 is about 6516.0938452419. The cubic root of 42459479 is about 348.8656582088.

The spelling of 42459479 in words is "forty-two million, four hundred fifty-nine thousand, four hundred seventy-nine".