42918373 has 4 divisors (see below), whose sum is σ = 42931840. Its totient is φ = 42904908.

The previous prime is 42918331. The next prime is 42918377. The reversal of 42918373 is 37381924.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42918373 - 2¹⁷ = 42787301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42918377) 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, 1036 + ... + 9322.

It is an arithmetic number, because the mean of its divisors is an integer number (10732960).

Almost surely, 2^42918373 is an apocalyptic number.

It is an amenable number.

42918373 is a deficient number, since it is larger than the sum of its proper divisors (13467).

42918373 is an equidigital number, since it uses as much as digits as its factorization.

42918373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13466.

The product of its digits is 36288, while the sum is 37.

The square root of 42918373 is about 6551.2115673362. The cubic root of 42918373 is about 350.1179819935.

The spelling of 42918373 in words is "forty-two million, nine hundred eighteen thousand, three hundred seventy-three".