42472623 has 4 divisors (see below), whose sum is σ = 56630168. Its totient is φ = 28315080.

The previous prime is 42472601. The next prime is 42472627. The reversal of 42472623 is 32627424.

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

It is not a de Polignac number, because 42472623 - 2²² = 38278319 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 (42472627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7078768 + ... + 7078773.

It is an arithmetic number, because the mean of its divisors is an integer number (14157542).

Almost surely, 2^42472623 is an apocalyptic number.

42472623 is a deficient number, since it is larger than the sum of its proper divisors (14157545).

42472623 is a wasteful number, since it uses less digits than its factorization.

42472623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157544.

The product of its digits is 16128, while the sum is 30.

The square root of 42472623 is about 6517.1023469023. The cubic root of 42472623 is about 348.9016534465.

The spelling of 42472623 in words is "forty-two million, four hundred seventy-two thousand, six hundred twenty-three".