42452071 has 4 divisors (see below), whose sum is σ = 43085752. Its totient is φ = 41818392.

The previous prime is 42452063. The next prime is 42452083. The reversal of 42452071 is 17025424.

42452071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42452071 - 2³ = 42452063 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 (42452041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316740 + ... + 316873.

It is an arithmetic number, because the mean of its divisors is an integer number (10771438).

Almost surely, 2^42452071 is an apocalyptic number.

42452071 is a deficient number, since it is larger than the sum of its proper divisors (633681).

42452071 is an equidigital number, since it uses as much as digits as its factorization.

42452071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633680.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42452071 is about 6515.5253817325. The cubic root of 42452071 is about 348.8453679056.

Adding to 42452071 its reverse (17025424), we get a palindrome (59477495).

The spelling of 42452071 in words is "forty-two million, four hundred fifty-two thousand, seventy-one".