42123004 has 36 divisors (see below), whose sum is σ = 92608432. Its totient is φ = 16410240.

The previous prime is 42122999. The next prime is 42123013. The reversal of 42123004 is 40032124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2829 + ... + 9604.

Almost surely, 2^42123004 is an apocalyptic number.

42123004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42123004 is an abundant number, since it is smaller than the sum of its proper divisors (50485428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42123004 is a wasteful number, since it uses less digits than its factorization.

42123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12466 (or 12453 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42123004 is about 6490.2237249574. The cubic root of 42123004 is about 347.9416712034.

Adding to 42123004 its reverse (40032124), we get a palindrome (82155128).

The spelling of 42123004 in words is "forty-two million, one hundred twenty-three thousand, four".