42624623 has 4 divisors (see below), whose sum is σ = 42660000. Its totient is φ = 42589248.

The previous prime is 42624599. The next prime is 42624671. The reversal of 42624623 is 32642624.

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

It is a cyclic number.

It is not a de Polignac number, because 42624623 - 2⁸ = 42624367 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 (42624523) 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, 15815 + ... + 18312.

It is an arithmetic number, because the mean of its divisors is an integer number (10665000).

Almost surely, 2^42624623 is an apocalyptic number.

42624623 is a deficient number, since it is larger than the sum of its proper divisors (35377).

42624623 is a wasteful number, since it uses less digits than its factorization.

42624623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35376.

The product of its digits is 13824, while the sum is 29.

The square root of 42624623 is about 6528.7535563843. The cubic root of 42624623 is about 349.3173715303.

The spelling of 42624623 in words is "forty-two million, six hundred twenty-four thousand, six hundred twenty-three".