42743518 has 4 divisors (see below), whose sum is σ = 64115280. Its totient is φ = 21371758.

The previous prime is 42743507. The next prime is 42743551. The reversal of 42743518 is 81534724.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10685878 + ... + 10685881.

It is an arithmetic number, because the mean of its divisors is an integer number (16028820).

Almost surely, 2^42743518 is an apocalyptic number.

42743518 is a deficient number, since it is larger than the sum of its proper divisors (21371762).

42743518 is a wasteful number, since it uses less digits than its factorization.

42743518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21371761.

The product of its digits is 26880, while the sum is 34.

The square root of 42743518 is about 6537.8527055907. The cubic root of 42743518 is about 349.6418595050.

The spelling of 42743518 in words is "forty-two million, seven hundred forty-three thousand, five hundred eighteen".