42746443 has 4 divisors (see below), whose sum is σ = 44605008. Its totient is φ = 40887880.

The previous prime is 42746441. The next prime is 42746467. The reversal of 42746443 is 34464724.

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 42746443 - 2¹ = 42746441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42746399 and 42746408.

It is not an unprimeable number, because it can be changed into a prime (42746441) 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, 929248 + ... + 929293.

It is an arithmetic number, because the mean of its divisors is an integer number (11151252).

Almost surely, 2^42746443 is an apocalyptic number.

42746443 is a deficient number, since it is larger than the sum of its proper divisors (1858565).

42746443 is a wasteful number, since it uses less digits than its factorization.

42746443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858564.

The product of its digits is 64512, while the sum is 34.

The square root of 42746443 is about 6538.0763990642. The cubic root of 42746443 is about 349.6498348204.

The spelling of 42746443 in words is "forty-two million, seven hundred forty-six thousand, four hundred forty-three".