20273813 has 8 divisors (see below), whose sum is σ = 23969280. Its totient is φ = 16778160.

The previous prime is 20273791. The next prime is 20273819. The reversal of 20273813 is 31837202.

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

It is not a de Polignac number, because 20273813 - 2¹⁶ = 20208277 is a prime.

It is a super-2 number, since 2×20273813² = 822054987117938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273819) 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, 49733 + ... + 50138.

It is an arithmetic number, because the mean of its divisors is an integer number (2996160).

Almost surely, 2^20273813 is an apocalyptic number.

It is an amenable number.

20273813 is a deficient number, since it is larger than the sum of its proper divisors (3695467).

20273813 is an equidigital number, since it uses as much as digits as its factorization.

20273813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99907.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20273813 is about 4502.6451114872. The cubic root of 20273813 is about 272.6748892759.

The spelling of 20273813 in words is "twenty million, two hundred seventy-three thousand, eight hundred thirteen".