20465026 has 4 divisors (see below), whose sum is σ = 30697542. Its totient is φ = 10232512.

The previous prime is 20464987. The next prime is 20465041. The reversal of 20465026 is 62056402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62056402 = 2 ⋅31028201.

It can be written as a sum of positive squares in only one way, i.e., 11909401 + 8555625 = 3451^2 + 2925^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116255 + ... + 5116258.

Almost surely, 2^20465026 is an apocalyptic number.

20465026 is a deficient number, since it is larger than the sum of its proper divisors (10232516).

20465026 is a wasteful number, since it uses less digits than its factorization.

20465026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232515.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20465026 is about 4523.8286881800. The cubic root of 20465026 is about 273.5294550548.

The spelling of 20465026 in words is "twenty million, four hundred sixty-five thousand, twenty-six".