20078265 has 8 divisors (see below), whose sum is σ = 32125248. Its totient is φ = 10708400.

The previous prime is 20078257. The next prime is 20078273. The reversal of 20078265 is 56287002.

It is an interprime number because it is at equal distance from previous prime (20078257) and next prime (20078273).

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

It is not a de Polignac number, because 20078265 - 2³ = 20078257 is a prime.

It is a Curzon 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, 669261 + ... + 669290.

It is an arithmetic number, because the mean of its divisors is an integer number (4015656).

Almost surely, 2^20078265 is an apocalyptic number.

It is an amenable number.

20078265 is a deficient number, since it is larger than the sum of its proper divisors (12046983).

20078265 is a wasteful number, since it uses less digits than its factorization.

20078265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338559.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20078265 is about 4480.8777042004. The cubic root of 20078265 is about 271.7953739600.

The spelling of 20078265 in words is "twenty million, seventy-eight thousand, two hundred sixty-five".