42635216 has 40 divisors (see below), whose sum is σ = 90244224. Its totient is φ = 19393920.

The previous prime is 42635213. The next prime is 42635233. The reversal of 42635216 is 61253624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42635213) 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, 13325 + ... + 16211.

Almost surely, 2^42635216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42635216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45122112).

42635216 is an abundant number, since it is smaller than the sum of its proper divisors (47609008).

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

42635216 is a wasteful number, since it uses less digits than its factorization.

42635216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2973 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 42635216 is about 6529.5647634433. The cubic root of 42635216 is about 349.3463063897.

The spelling of 42635216 in words is "forty-two million, six hundred thirty-five thousand, two hundred sixteen".