20150032 has 80 divisors (see below), whose sum is σ = 49818240. Its totient is φ = 7686144.

The previous prime is 20150021. The next prime is 20150033. The reversal of 20150032 is 23005102.

It is a junction number, because it is equal to n+sod(n) for n = 20149994 and 20150021.

It is not an unprimeable number, because it can be changed into a prime (20150033) 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, 35898 + ... + 36454.

It is an arithmetic number, because the mean of its divisors is an integer number (622728).

Almost surely, 2^20150032 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 20150032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24909120).

20150032 is an abundant number, since it is smaller than the sum of its proper divisors (29668208).

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

20150032 is a wasteful number, since it uses less digits than its factorization.

20150032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20150032 is about 4488.8787018586. The cubic root of 20150032 is about 272.1188206358.

Adding to 20150032 its reverse (23005102), we get a palindrome (43155134).

The spelling of 20150032 in words is "twenty million, one hundred fifty thousand, thirty-two".