42004623 has 8 divisors (see below), whose sum is σ = 57372336. Its totient is φ = 27320000.

The previous prime is 42004579. The next prime is 42004639. The reversal of 42004623 is 32640024.

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 42004623 - 2⁸ = 42004367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42004623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42004663) 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, 170628 + ... + 170873.

It is an arithmetic number, because the mean of its divisors is an integer number (7171542).

Almost surely, 2^42004623 is an apocalyptic number.

42004623 is a deficient number, since it is larger than the sum of its proper divisors (15367713).

42004623 is a wasteful number, since it uses less digits than its factorization.

42004623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341545.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42004623 is about 6481.0973607870. The cubic root of 42004623 is about 347.6154177280.

Adding to 42004623 its reverse (32640024), we get a palindrome (74644647).

The spelling of 42004623 in words is "forty-two million, four thousand, six hundred twenty-three".