42504347 has 4 divisors (see below), whose sum is σ = 42561696. Its totient is φ = 42447000.

The previous prime is 42504337. The next prime is 42504433. The reversal of 42504347 is 74340524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42504347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42504337) 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, 27548 + ... + 29049.

It is an arithmetic number, because the mean of its divisors is an integer number (10640424).

Almost surely, 2^42504347 is an apocalyptic number.

42504347 is a deficient number, since it is larger than the sum of its proper divisors (57349).

42504347 is an equidigital number, since it uses as much as digits as its factorization.

42504347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57348.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 42504347 is about 6519.5357963585. The cubic root of 42504347 is about 348.9884999892.

The spelling of 42504347 in words is "forty-two million, five hundred four thousand, three hundred forty-seven".