42943751 has 8 divisors (see below), whose sum is σ = 47038320. Its totient is φ = 39023488.

The previous prime is 42943741. The next prime is 42943753. The reversal of 42943751 is 15734924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42943751 - 2¹⁰ = 42942727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42943753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43061 + ... + 44046.

It is an arithmetic number, because the mean of its divisors is an integer number (5879790).

Almost surely, 2^42943751 is an apocalyptic number.

42943751 is a deficient number, since it is larger than the sum of its proper divisors (4094569).

42943751 is a wasteful number, since it uses less digits than its factorization.

42943751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87153.

The product of its digits is 30240, while the sum is 35.

The square root of 42943751 is about 6553.1481747325. The cubic root of 42943751 is about 350.1869776457.

The spelling of 42943751 in words is "forty-two million, nine hundred forty-three thousand, seven hundred fifty-one".