20343434 has 8 divisors (see below), whose sum is σ = 30626148. Its totient is φ = 10134720.

The previous prime is 20343419. The next prime is 20343473. The reversal of 20343434 is 43434302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14462809 + 5880625 = 3803^2 + 2425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17807 + ... + 18914.

Almost surely, 2^20343434 is an apocalyptic number.

20343434 is a deficient number, since it is larger than the sum of its proper divisors (10282714).

20343434 is a wasteful number, since it uses less digits than its factorization.

20343434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37000.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 20343434 is about 4510.3696079146. The cubic root of 20343434 is about 272.9866577852.

Adding to 20343434 its reverse (43434302), we get a palindrome (63777736).

The spelling of 20343434 in words is "twenty million, three hundred forty-three thousand, four hundred thirty-four".