42938236 has 12 divisors (see below), whose sum is σ = 81973080. Its totient is φ = 19517360.

The previous prime is 42938227. The next prime is 42938237. The reversal of 42938236 is 63283924.

It is a super-2 number, since 2×42938236² = 3687384221583392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42938195 and 42938204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42938237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487891 + ... + 487978.

It is an arithmetic number, because the mean of its divisors is an integer number (6831090).

Almost surely, 2^42938236 is an apocalyptic number.

It is an amenable number.

42938236 is a deficient number, since it is larger than the sum of its proper divisors (39034844).

42938236 is a wasteful number, since it uses less digits than its factorization.

42938236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975884 (or 975882 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 42938236 is about 6552.7273711028. The cubic root of 42938236 is about 350.1719862223.

The spelling of 42938236 in words is "forty-two million, nine hundred thirty-eight thousand, two hundred thirty-six".