20434034 has 12 divisors (see below), whose sum is σ = 32561034. Its totient is φ = 9615744.

The previous prime is 20433989. The next prime is 20434069. The reversal of 20434034 is 43043402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18879025 + 1555009 = 4345^2 + 1247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20433997 and 20434015.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17099 + ... + 18254.

Almost surely, 2^20434034 is an apocalyptic number.

20434034 is a deficient number, since it is larger than the sum of its proper divisors (12127000).

20434034 is a wasteful number, since it uses less digits than its factorization.

20434034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35389 (or 35372 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20434034 is about 4520.4019732763. The cubic root of 20434034 is about 273.3913086752.

Adding to 20434034 its reverse (43043402), we get a palindrome (63477436).

The spelling of 20434034 in words is "twenty million, four hundred thirty-four thousand, thirty-four".