42564473 has 8 divisors (see below), whose sum is σ = 49147392. Its totient is φ = 36107136.

The previous prime is 42564463. The next prime is 42564479. The reversal of 42564473 is 37446524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42564473 - 2⁶ = 42564409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42564479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30665 + ... + 32022.

It is an arithmetic number, because the mean of its divisors is an integer number (6143424).

Almost surely, 2^42564473 is an apocalyptic number.

It is an amenable number.

42564473 is a deficient number, since it is larger than the sum of its proper divisors (6582919).

42564473 is an equidigital number, since it uses as much as digits as its factorization.

42564473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62791.

The product of its digits is 80640, while the sum is 35.

The square root of 42564473 is about 6524.1453846462. The cubic root of 42564473 is about 349.1529803901.

The spelling of 42564473 in words is "forty-two million, five hundred sixty-four thousand, four hundred seventy-three".