42223512 has 64 divisors (see below), whose sum is σ = 114829920. Its totient is φ = 12883968.

The previous prime is 42223429. The next prime is 42223513. The reversal of 42223512 is 21532224.

It is a super-2 number, since 2×42223512² = 3565649931228288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13698 + ... + 16494.

Almost surely, 2^42223512 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 42223512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57414960).

42223512 is an abundant number, since it is smaller than the sum of its proper divisors (72606408).

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

42223512 is a wasteful number, since it uses less digits than its factorization.

42223512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860 (or 2856 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 42223512 is about 6497.9621420873. The cubic root of 42223512 is about 348.2181879183.

Adding to 42223512 its reverse (21532224), we get a palindrome (63755736).

The spelling of 42223512 in words is "forty-two million, two hundred twenty-three thousand, five hundred twelve".