42804455 has 4 divisors (see below), whose sum is σ = 51365352. Its totient is φ = 34243560.

The previous prime is 42804439. The next prime is 42804467. The reversal of 42804455 is 55440824.

42804455 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 not a de Polignac number, because 42804455 - 2⁴ = 42804439 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4280441 + ... + 4280450.

It is an arithmetic number, because the mean of its divisors is an integer number (12841338).

Almost surely, 2^42804455 is an apocalyptic number.

42804455 is a deficient number, since it is larger than the sum of its proper divisors (8560897).

42804455 is an equidigital number, since it uses as much as digits as its factorization.

42804455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560896.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 42804455 is about 6542.5113679687. The cubic root of 42804455 is about 349.8079354390.

The spelling of 42804455 in words is "forty-two million, eight hundred four thousand, four hundred fifty-five".