42546223 has 4 divisors (see below), whose sum is σ = 45048960. Its totient is φ = 40043488.

The previous prime is 42546211. The next prime is 42546239. The reversal of 42546223 is 32264524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42546223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42546191 and 42546200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42546293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251343 + ... + 1251376.

It is an arithmetic number, because the mean of its divisors is an integer number (11262240).

Almost surely, 2^42546223 is an apocalyptic number.

42546223 is a deficient number, since it is larger than the sum of its proper divisors (2502737).

42546223 is a wasteful number, since it uses less digits than its factorization.

42546223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502736.

The product of its digits is 11520, while the sum is 28.

The square root of 42546223 is about 6522.7465840702. The cubic root of 42546223 is about 349.1030721579.

The spelling of 42546223 in words is "forty-two million, five hundred forty-six thousand, two hundred twenty-three".