42387343 has 4 divisors (see below), whose sum is σ = 42429960. Its totient is φ = 42344728.

The previous prime is 42387337. The next prime is 42387383. The reversal of 42387343 is 34378324.

It is a happy number.

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 42387343 - 2¹³ = 42379151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42387299 and 42387308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42387383) 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, 19780 + ... + 21817.

It is an arithmetic number, because the mean of its divisors is an integer number (10607490).

Almost surely, 2^42387343 is an apocalyptic number.

42387343 is a deficient number, since it is larger than the sum of its proper divisors (42617).

42387343 is a wasteful number, since it uses less digits than its factorization.

42387343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42616.

The product of its digits is 48384, while the sum is 34.

The square root of 42387343 is about 6510.5562742365. The cubic root of 42387343 is about 348.6679792384.

The spelling of 42387343 in words is "forty-two million, three hundred eighty-seven thousand, three hundred forty-three".