42783636 has 24 divisors (see below), whose sum is σ = 114089920. Its totient is φ = 12223872.

The previous prime is 42783619. The next prime is 42783641. The reversal of 42783636 is 63638724.

It is a junction number, because it is equal to n+sod(n) for n = 42783594 and 42783603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254581 + ... + 254748.

Almost surely, 2^42783636 is an apocalyptic number.

It is an amenable number.

42783636 is an abundant number, since it is smaller than the sum of its proper divisors (71306284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42783636 is a wasteful number, since it uses less digits than its factorization.

42783636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509343 (or 509341 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 42783636 is about 6540.9201187601. The cubic root of 42783636 is about 349.7512136763.

The spelling of 42783636 in words is "forty-two million, seven hundred eighty-three thousand, six hundred thirty-six".