42454465 has 4 divisors (see below), whose sum is σ = 50945364. Its totient is φ = 33963568.

The previous prime is 42454427. The next prime is 42454471. The reversal of 42454465 is 56445424.

42454465 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 can be written as a sum of positive squares in 2 ways, for example, as 5049009 + 37405456 = 2247^2 + 6116^2 .

It is a cyclic number.

It is not a de Polignac number, because 42454465 - 2¹³ = 42446273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42454465.

It is an unprimeable number.

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, 4245442 + ... + 4245451.

It is an arithmetic number, because the mean of its divisors is an integer number (12736341).

Almost surely, 2^42454465 is an apocalyptic number.

It is an amenable number.

42454465 is a deficient number, since it is larger than the sum of its proper divisors (8490899).

42454465 is an equidigital number, since it uses as much as digits as its factorization.

42454465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490898.

The product of its digits is 76800, while the sum is 34.

The square root of 42454465 is about 6515.7090941815. The cubic root of 42454465 is about 348.8519252622.

Adding to 42454465 its reverse (56445424), we get a palindrome (98899889).

The spelling of 42454465 in words is "forty-two million, four hundred fifty-four thousand, four hundred sixty-five".