42245632 has 80 divisors (see below), whose sum is σ = 99337392. Its totient is φ = 17694720.

The previous prime is 42245627. The next prime is 42245647. The reversal of 42245632 is 23654224.

It is a self number, because there is not a number n which added to its sum of digits gives 42245632.

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, 72928 + ... + 73504.

Almost surely, 2^42245632 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 42245632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49668696).

42245632 is an abundant number, since it is smaller than the sum of its proper divisors (57091760).

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

42245632 is a wasteful number, since it uses less digits than its factorization.

42245632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 603 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 42245632 is about 6499.6639913152. The cubic root of 42245632 is about 348.2789853372.

Adding to 42245632 its reverse (23654224), we get a palindrome (65899856).

The spelling of 42245632 in words is "forty-two million, two hundred forty-five thousand, six hundred thirty-two".