42188336 has 20 divisors (see below), whose sum is σ = 81877200. Its totient is φ = 21058752.

The previous prime is 42188329. The next prime is 42188347. The reversal of 42188336 is 63388124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42188296 and 42188305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9485 + ... + 13203.

It is an arithmetic number, because the mean of its divisors is an integer number (4093860).

Almost surely, 2^42188336 is an apocalyptic number.

It is an amenable number.

42188336 is a deficient number, since it is larger than the sum of its proper divisors (39688864).

42188336 is a wasteful number, since it uses less digits than its factorization.

42188336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436 (or 4430 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 42188336 is about 6495.2548833745. The cubic root of 42188336 is about 348.1214619833.

It can be divided in two parts, 42188 and 336, that added together give a palindrome (42524).

The spelling of 42188336 in words is "forty-two million, one hundred eighty-eight thousand, three hundred thirty-six".