20486265 has 16 divisors (see below), whose sum is σ = 33578496. Its totient is φ = 10659200.

The previous prime is 20486239. The next prime is 20486293. The reversal of 20486265 is 56268402.

It is not a de Polignac number, because 20486265 - 2¹⁴ = 20469881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16041 + ... + 17270.

It is an arithmetic number, because the mean of its divisors is an integer number (2098656).

Almost surely, 2^20486265 is an apocalyptic number.

It is an amenable number.

20486265 is a deficient number, since it is larger than the sum of its proper divisors (13092231).

20486265 is a wasteful number, since it uses less digits than its factorization.

20486265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33360.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 20486265 is about 4526.1755379128. The cubic root of 20486265 is about 273.6240470597.

The spelling of 20486265 in words is "twenty million, four hundred eighty-six thousand, two hundred sixty-five".