42033993 has 4 divisors (see below), whose sum is σ = 56045328. Its totient is φ = 28022660.

The previous prime is 42033989. The next prime is 42034001. The reversal of 42033993 is 39933024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42033993 - 2² = 42033989 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42033913) 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, 7005663 + ... + 7005668.

It is an arithmetic number, because the mean of its divisors is an integer number (14011332).

Almost surely, 2^42033993 is an apocalyptic number.

It is an amenable number.

42033993 is a deficient number, since it is larger than the sum of its proper divisors (14011335).

42033993 is a wasteful number, since it uses less digits than its factorization.

42033993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14011334.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 42033993 is about 6483.3627848517. The cubic root of 42033993 is about 347.6964174331.

The spelling of 42033993 in words is "forty-two million, thirty-three thousand, nine hundred ninety-three".