20425032 has 48 divisors (see below), whose sum is σ = 57108480. Its totient is φ = 6588000.

The previous prime is 20425021. The next prime is 20425049. The reversal of 20425032 is 23052402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20424996 and 20425014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2344 + ... + 6807.

It is an arithmetic number, because the mean of its divisors is an integer number (1189760).

Almost surely, 2^20425032 is an apocalyptic number.

It is an amenable number.

20425032 is an abundant number, since it is smaller than the sum of its proper divisors (36683448).

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

20425032 is a wasteful number, since it uses less digits than its factorization.

20425032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194 (or 9187 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20425032 is about 4519.4061556802. The cubic root of 20425032 is about 273.3511562177.

Adding to 20425032 its reverse (23052402), we get a palindrome (43477434).

The spelling of 20425032 in words is "twenty million, four hundred twenty-five thousand, thirty-two".