20486266 has 12 divisors (see below), whose sum is σ = 31403898. Its totient is φ = 10023032.

The previous prime is 20486239. The next prime is 20486293. The reversal of 20486266 is 66268402.

It is an interprime number because it is at equal distance from previous prime (20486239) and next prime (20486293).

It can be written as a sum of positive squares in only one way, i.e., 19105641 + 1380625 = 4371^2 + 1175^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2100 + ... + 6736.

Almost surely, 2^20486266 is an apocalyptic number.

20486266 is a deficient number, since it is larger than the sum of its proper divisors (10917632).

20486266 is an equidigital number, since it uses as much as digits as its factorization.

20486266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 20486266 is about 4526.1756483813. The cubic root of 20486266 is about 273.6240515118.

The spelling of 20486266 in words is "twenty million, four hundred eighty-six thousand, two hundred sixty-six".