20442032 has 40 divisors (see below), whose sum is σ = 44517984. Its totient is φ = 9022464.

The previous prime is 20442011. The next prime is 20442053. The reversal of 20442032 is 23024402.

It is an interprime number because it is at equal distance from previous prime (20442011) and next prime (20442053).

It is a self number, because there is not a number n which added to its sum of digits gives 20442032.

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, 2648 + ... + 6920.

Almost surely, 2^20442032 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 20442032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22258992).

20442032 is an abundant number, since it is smaller than the sum of its proper divisors (24075952).

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

20442032 is a wasteful number, since it uses less digits than its factorization.

20442032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20442032 is about 4521.2865425673. The cubic root of 20442032 is about 273.4269730064.

Adding to 20442032 its reverse (23024402), we get a palindrome (43466434).

The spelling of 20442032 in words is "twenty million, four hundred forty-two thousand, thirty-two".