20343034 has 16 divisors (see below), whose sum is σ = 32457600. Its totient is φ = 9535104.

The previous prime is 20343031. The next prime is 20343049. The reversal of 20343034 is 43034302.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20343031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (2028600).

Almost surely, 2^20343034 is an apocalyptic number.

20343034 is a deficient number, since it is larger than the sum of its proper divisors (12114566).

20343034 is a wasteful number, since it uses less digits than its factorization.

20343034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20343034 is about 4510.3252654326. The cubic root of 20343034 is about 272.9848685858.

Adding to 20343034 its reverse (43034302), we get a palindrome (63377336).

The spelling of 20343034 in words is "twenty million, three hundred forty-three thousand, thirty-four".