42938386 has 16 divisors (see below), whose sum is σ = 67573440. Its totient is φ = 20434960.

The previous prime is 42938383. The next prime is 42938387. The reversal of 42938386 is 68383924.

It is not an unprimeable number, because it can be changed into a prime (42938383) 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, 1096 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (4223340).

Almost surely, 2^42938386 is an apocalyptic number.

42938386 is a deficient number, since it is larger than the sum of its proper divisors (24635054).

42938386 is a wasteful number, since it uses less digits than its factorization.

42938386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529.

The product of its digits is 248832, while the sum is 43.

The square root of 42938386 is about 6552.7388167086. The cubic root of 42938386 is about 350.1723939842.

The spelling of 42938386 in words is "forty-two million, nine hundred thirty-eight thousand, three hundred eighty-six".