20341430 has 32 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 7645792.

The previous prime is 20341423. The next prime is 20341439. The reversal of 20341430 is 3414302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20341399 and 20341408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12821 + ... + 14319.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^20341430 is an apocalyptic number.

20341430 is a deficient number, since it is larger than the sum of its proper divisors (18538570).

20341430 is a wasteful number, since it uses less digits than its factorization.

20341430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20341430 is about 4510.1474477006. The cubic root of 20341430 is about 272.9776936606.

Adding to 20341430 its reverse (3414302), we get a palindrome (23755732).

The spelling of 20341430 in words is "twenty million, three hundred forty-one thousand, four hundred thirty".