42133923 has 24 divisors (see below), whose sum is σ = 66066000. Its totient is φ = 25721280.

The previous prime is 42133919. The next prime is 42133943. The reversal of 42133923 is 32933124.

It is a happy number.

It is not a de Polignac number, because 42133923 - 2² = 42133919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42133913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13953 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (2752750).

Almost surely, 2^42133923 is an apocalyptic number.

42133923 is a deficient number, since it is larger than the sum of its proper divisors (23932077).

42133923 is a wasteful number, since it uses less digits than its factorization.

42133923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899 (or 2896 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 42133923 is about 6491.0648587116. The cubic root of 42133923 is about 347.9717327416.

The spelling of 42133923 in words is "forty-two million, one hundred thirty-three thousand, nine hundred twenty-three".