20434266 has 12 divisors (see below), whose sum is σ = 44274282. Its totient is φ = 6811416.

The previous prime is 20434259. The next prime is 20434319. The reversal of 20434266 is 66243402.

It can be written as a sum of positive squares in only one way, i.e., 16573041 + 3861225 = 4071^2 + 1965^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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, 567601 + ... + 567636.

Almost surely, 2^20434266 is an apocalyptic number.

20434266 is an abundant number, since it is smaller than the sum of its proper divisors (23840016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20434266 is a wasteful number, since it uses less digits than its factorization.

20434266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135245 (or 1135242 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 20434266 is about 4520.4276346381. The cubic root of 20434266 is about 273.3923433305.

Adding to 20434266 its reverse (66243402), we get a palindrome (86677668).

The spelling of 20434266 in words is "twenty million, four hundred thirty-four thousand, two hundred sixty-six".