42573447 has 24 divisors (see below), whose sum is σ = 72550400. Its totient is φ = 23541840.

The previous prime is 42573431. The next prime is 42573523. The reversal of 42573447 is 74437524.

42573447 is a `hidden beast` number, since 42 + 573 + 4 + 47 = 666.

42573447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42573447 - 2⁴ = 42573431 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 (42573407) 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 23 ways as a sum of consecutive naturals, for example, 8947 + ... + 12852.

Almost surely, 2^42573447 is an apocalyptic number.

42573447 is a deficient number, since it is larger than the sum of its proper divisors (29976953).

42573447 is a wasteful number, since it uses less digits than its factorization.

42573447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843 (or 21840 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 42573447 is about 6524.8331013138. The cubic root of 42573447 is about 349.1775163348.

The spelling of 42573447 in words is "forty-two million, five hundred seventy-three thousand, four hundred forty-seven".