20273686 has 8 divisors (see below), whose sum is σ = 30466800. Its totient is φ = 10118088.

The previous prime is 20273681. The next prime is 20273699. The reversal of 20273686 is 68637202.

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

It is a super-2 number, since 2×20273686² = 822044688053192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273681) 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, 7986 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (3808350).

Almost surely, 2^20273686 is an apocalyptic number.

20273686 is a deficient number, since it is larger than the sum of its proper divisors (10193114).

20273686 is a wasteful number, since it uses less digits than its factorization.

20273686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18758.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20273686 is about 4502.6310086437. The cubic root of 20273686 is about 272.6743199079.

The spelling of 20273686 in words is "twenty million, two hundred seventy-three thousand, six hundred eighty-six".