20430382 has 16 divisors (see below), whose sum is σ = 35878752. Its totient is φ = 8542080.

The previous prime is 20430373. The next prime is 20430409. The reversal of 20430382 is 28303402.

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, 17223 + ... + 18370.

It is an arithmetic number, because the mean of its divisors is an integer number (2242422).

Almost surely, 2^20430382 is an apocalyptic number.

20430382 is a deficient number, since it is larger than the sum of its proper divisors (15448370).

20430382 is a wasteful number, since it uses less digits than its factorization.

20430382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35643.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20430382 is about 4519.9980088491. The cubic root of 20430382 is about 273.3750207420.

Adding to 20430382 its reverse (28303402), we get a palindrome (48733784).

The spelling of 20430382 in words is "twenty million, four hundred thirty thousand, three hundred eighty-two".