42373291 has 4 divisors (see below), whose sum is σ = 44215632. Its totient is φ = 40530952.

The previous prime is 42373271. The next prime is 42373301. The reversal of 42373291 is 19237324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42373291 - 2⁵ = 42373259 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42373271) 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 3 ways as a sum of consecutive naturals, for example, 921136 + ... + 921181.

It is an arithmetic number, because the mean of its divisors is an integer number (11053908).

Almost surely, 2^42373291 is an apocalyptic number.

42373291 is a deficient number, since it is larger than the sum of its proper divisors (1842341).

42373291 is a wasteful number, since it uses less digits than its factorization.

42373291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842340.

The product of its digits is 9072, while the sum is 31.

The square root of 42373291 is about 6509.4770143230. The cubic root of 42373291 is about 348.6294455346.

The spelling of 42373291 in words is "forty-two million, three hundred seventy-three thousand, two hundred ninety-one".