20266426 has 8 divisors (see below), whose sum is σ = 31999680. Its totient is φ = 9599868.

The previous prime is 20266409. The next prime is 20266429. The reversal of 20266426 is 62466202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20266394 and 20266403.

It is not an unprimeable number, because it can be changed into a prime (20266429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266626 + ... + 266701.

It is an arithmetic number, because the mean of its divisors is an integer number (3999960).

Almost surely, 2^20266426 is an apocalyptic number.

20266426 is a deficient number, since it is larger than the sum of its proper divisors (11733254).

20266426 is a wasteful number, since it uses less digits than its factorization.

20266426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533348.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20266426 is about 4501.8247411466. The cubic root of 20266426 is about 272.6417678285.

The spelling of 20266426 in words is "twenty million, two hundred sixty-six thousand, four hundred twenty-six".