42452623 has 4 divisors (see below), whose sum is σ = 42873048. Its totient is φ = 42032200.

The previous prime is 42452581. The next prime is 42452647. The reversal of 42452623 is 32625424.

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-42452623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42452591 and 42452600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42452693) 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, 210061 + ... + 210262.

It is an arithmetic number, because the mean of its divisors is an integer number (10718262).

Almost surely, 2^42452623 is an apocalyptic number.

42452623 is a deficient number, since it is larger than the sum of its proper divisors (420425).

42452623 is a wasteful number, since it uses less digits than its factorization.

42452623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420424.

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

The square root of 42452623 is about 6515.5677419546. The cubic root of 42452623 is about 348.8468798994.

The spelling of 42452623 in words is "forty-two million, four hundred fifty-two thousand, six hundred twenty-three".