42743386 has 12 divisors (see below), whose sum is σ = 74583018. Its totient is φ = 18318552.

The previous prime is 42743383. The next prime is 42743401. The reversal of 42743386 is 68334724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39250225 + 3493161 = 6265^2 + 1869^2 .

It is not an unprimeable number, because it can be changed into a prime (42743383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217981 + ... + 218176.

Almost surely, 2^42743386 is an apocalyptic number.

42743386 is a deficient number, since it is larger than the sum of its proper divisors (31839632).

42743386 is a wasteful number, since it uses less digits than its factorization.

42743386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436173 (or 436166 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 42743386 is about 6537.8426105253. The cubic root of 42743386 is about 349.6414995848.

The spelling of 42743386 in words is "forty-two million, seven hundred forty-three thousand, three hundred eighty-six".