20002430 has 16 divisors (see below), whose sum is σ = 41148000. Its totient is φ = 6857952.

The previous prime is 20002429. The next prime is 20002453. The reversal of 20002430 is 3420002.

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, 142805 + ... + 142944.

It is an arithmetic number, because the mean of its divisors is an integer number (2571750).

Almost surely, 2^20002430 is an apocalyptic number.

20002430 is an abundant number, since it is smaller than the sum of its proper divisors (21145570).

20002430 is a wasteful number, since it uses less digits than its factorization.

20002430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285763.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20002430 is about 4472.4076290070. The cubic root of 20002430 is about 271.4527546056.

Adding to 20002430 its reverse (3420002), we get a palindrome (23422432).

The spelling of 20002430 in words is "twenty million, two thousand, four hundred thirty".