42123576 has 64 divisors (see below), whose sum is σ = 115459200. Its totient is φ = 12700800.

The previous prime is 42123559. The next prime is 42123577. The reversal of 42123576 is 67532124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99846 + ... + 100266.

It is an arithmetic number, because the mean of its divisors is an integer number (1804050).

Almost surely, 2^42123576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42123576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57729600).

42123576 is an abundant number, since it is smaller than the sum of its proper divisors (73335624).

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

42123576 is a wasteful number, since it uses less digits than its factorization.

42123576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 816 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 42123576 is about 6490.2677910854. The cubic root of 42123576 is about 347.9432461286.

The spelling of 42123576 in words is "forty-two million, one hundred twenty-three thousand, five hundred seventy-six".