42743869 has 8 divisors (see below), whose sum is σ = 48944768. Its totient is φ = 36566640.

The previous prime is 42743861. The next prime is 42743887. The reversal of 42743869 is 96834724.

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 42743869 - 2³ = 42743861 is a prime.

It is a super-2 number, since 2×42743869² = 3654076674178322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42743861) 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, 1857 + ... + 9430.

It is an arithmetic number, because the mean of its divisors is an integer number (6118096).

Almost surely, 2^42743869 is an apocalyptic number.

It is an amenable number.

42743869 is a deficient number, since it is larger than the sum of its proper divisors (6200899).

42743869 is a wasteful number, since it uses less digits than its factorization.

42743869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835.

The product of its digits is 290304, while the sum is 43.

The square root of 42743869 is about 6537.8795492117. The cubic root of 42743869 is about 349.6428165621.

The spelling of 42743869 in words is "forty-two million, seven hundred forty-three thousand, eight hundred sixty-nine".