20269116 has 96 divisors (see below), whose sum is σ = 60981760. Its totient is φ = 5773680.

The previous prime is 20269099. The next prime is 20269121. The reversal of 20269116 is 61196202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20269116.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 61071 + ... + 61401.

Almost surely, 2^20269116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20269116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30490880).

20269116 is an abundant number, since it is smaller than the sum of its proper divisors (40712644).

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

20269116 is an equidigital number, since it uses as much as digits as its factorization.

20269116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 20269116 is about 4502.1234989725. The cubic root of 20269116 is about 272.6538300426.

The spelling of 20269116 in words is "twenty million, two hundred sixty-nine thousand, one hundred sixteen".