20486026 has 12 divisors (see below), whose sum is σ = 33776946. Its totient is φ = 9311720.

The previous prime is 20486023. The next prime is 20486027. The reversal of 20486026 is 62068402.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 245025 = 4499^2 + 495^2 .

It is a super-2 number, since 2×20486026² = 839354522545352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20485985 and 20486003.

It is not an unprimeable number, because it can be changed into a prime (20486023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42085 + ... + 42568.

Almost surely, 2^20486026 is an apocalyptic number.

20486026 is a deficient number, since it is larger than the sum of its proper divisors (13290920).

20486026 is a wasteful number, since it uses less digits than its factorization.

20486026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84677 (or 84666 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20486026 is about 4526.1491358549. The cubic root of 20486026 is about 273.6229829906.

The spelling of 20486026 in words is "twenty million, four hundred eighty-six thousand, twenty-six".