20266629 has 8 divisors (see below), whose sum is σ = 27425760. Its totient is φ = 13309296.

The previous prime is 20266613. The next prime is 20266633. The reversal of 20266629 is 92666202.

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

It is not a de Polignac number, because 20266629 - 2⁴ = 20266613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20266629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50214 + ... + 50615.

It is an arithmetic number, because the mean of its divisors is an integer number (3428220).

Almost surely, 2^20266629 is an apocalyptic number.

It is an amenable number.

20266629 is a deficient number, since it is larger than the sum of its proper divisors (7159131).

20266629 is a wasteful number, since it uses less digits than its factorization.

20266629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100899.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20266629 is about 4501.8472875032. The cubic root of 20266629 is about 272.6426781369.

The spelling of 20266629 in words is "twenty million, two hundred sixty-six thousand, six hundred twenty-nine".