42218652 has 72 divisors (see below), whose sum is σ = 116554368. Its totient is φ = 11651040.

The previous prime is 42218651. The next prime is 42218677. The reversal of 42218652 is 25681224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42218651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80463 + ... + 80985.

Almost surely, 2^42218652 is an apocalyptic number.

42218652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42218652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58277184).

42218652 is an abundant number, since it is smaller than the sum of its proper divisors (74335716).

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

42218652 is a wasteful number, since it uses less digits than its factorization.

42218652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 566 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 42218652 is about 6497.5881679282. The cubic root of 42218652 is about 348.2048272318.

Adding to 42218652 its reverse (25681224), we get a palindrome (67899876).

The spelling of 42218652 in words is "forty-two million, two hundred eighteen thousand, six hundred fifty-two".