42436623 has 8 divisors (see below), whose sum is σ = 57649968. Its totient is φ = 27757184.

The previous prime is 42436609. The next prime is 42436631. The reversal of 42436623 is 32663424.

It is a happy number.

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 42436623 - 2⁵ = 42436591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42436223) 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 7 ways as a sum of consecutive naturals, for example, 133290 + ... + 133607.

It is an arithmetic number, because the mean of its divisors is an integer number (7206246).

Almost surely, 2^42436623 is an apocalyptic number.

42436623 is a deficient number, since it is larger than the sum of its proper divisors (15213345).

42436623 is a wasteful number, since it uses less digits than its factorization.

42436623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266953.

The product of its digits is 20736, while the sum is 30.

The square root of 42436623 is about 6514.3397977078. The cubic root of 42436623 is about 348.8030486742.

The spelling of 42436623 in words is "forty-two million, four hundred thirty-six thousand, six hundred twenty-three".