20267005 has 8 divisors (see below), whose sum is σ = 26531424. Its totient is φ = 14739600.

The previous prime is 20266999. The next prime is 20267029. The reversal of 20267005 is 50076202.

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

It is not a de Polignac number, because 20267005 - 2⁷ = 20266877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184191 + ... + 184300.

It is an arithmetic number, because the mean of its divisors is an integer number (3316428).

Almost surely, 2^20267005 is an apocalyptic number.

It is an amenable number.

20267005 is a deficient number, since it is larger than the sum of its proper divisors (6264419).

20267005 is a wasteful number, since it uses less digits than its factorization.

20267005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368507.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20267005 is about 4501.8890479442. The cubic root of 20267005 is about 272.6443642093.

The spelling of 20267005 in words is "twenty million, two hundred sixty-seven thousand, five".