20235432 has 48 divisors (see below), whose sum is σ = 58851360. Its totient is φ = 5781216.

The previous prime is 20235431. The next prime is 20235433. The reversal of 20235432 is 23453202.

It is an interprime number because it is at equal distance from previous prime (20235431) and next prime (20235433).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20235399 and 20235408.

It is not an unprimeable number, because it can be changed into a prime (20235431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7428 + ... + 9779.

It is an arithmetic number, because the mean of its divisors is an integer number (1226070).

Almost surely, 2^20235432 is an apocalyptic number.

It is an amenable number.

20235432 is an abundant number, since it is smaller than the sum of its proper divisors (38615928).

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

20235432 is a wasteful number, since it uses less digits than its factorization.

20235432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17230 (or 17219 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20235432 is about 4498.3810421084. The cubic root of 20235432 is about 272.5027107437.

Adding to 20235432 its reverse (23453202), we get a palindrome (43688634).

The spelling of 20235432 in words is "twenty million, two hundred thirty-five thousand, four hundred thirty-two".