20260434 has 8 divisors (see below), whose sum is σ = 40520880. Its totient is φ = 6753476.

The previous prime is 20260433. The next prime is 20260451. The reversal of 20260434 is 43406202.

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

20260434 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20260434.

It is not an unprimeable number, because it can be changed into a prime (20260433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688364 + ... + 1688375.

It is an arithmetic number, because the mean of its divisors is an integer number (5065110).

Almost surely, 2^20260434 is an apocalyptic number.

20260434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20260434 is a wasteful number, since it uses less digits than its factorization.

20260434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376744.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20260434 is about 4501.1591840325. The cubic root of 20260434 is about 272.6148952971.

Adding to 20260434 its reverse (43406202), we get a palindrome (63666636).

The spelling of 20260434 in words is "twenty million, two hundred sixty thousand, four hundred thirty-four".