20262829 has 8 divisors (see below), whose sum is σ = 20659320. Its totient is φ = 19869696.

The previous prime is 20262817. The next prime is 20262833. The reversal of 20262829 is 92826202.

It can be written as a sum of positive squares in 4 ways, for example, as 3247204 + 17015625 = 1802^2 + 4125^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20262829 - 2¹¹ = 20260781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20262829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13677 + ... + 15085.

It is an arithmetic number, because the mean of its divisors is an integer number (2582415).

Almost surely, 2^20262829 is an apocalyptic number.

It is an amenable number.

20262829 is a deficient number, since it is larger than the sum of its proper divisors (396491).

20262829 is a wasteful number, since it uses less digits than its factorization.

20262829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20262829 is about 4501.4252187502. The cubic root of 20262829 is about 272.6256368727.

The spelling of 20262829 in words is "twenty million, two hundred sixty-two thousand, eight hundred twenty-nine".