20946226 has 12 divisors (see below), whose sum is σ = 36549198. Its totient is φ = 8976912.

The previous prime is 20946197. The next prime is 20946257. The reversal of 20946226 is 62264902.

It can be written as a sum of positive squares in only one way, i.e., 20385225 + 561001 = 4515^2 + 749^2 .

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, 106771 + ... + 106966.

Almost surely, 2^20946226 is an apocalyptic number.

20946226 is a deficient number, since it is larger than the sum of its proper divisors (15602972).

20946226 is a wasteful number, since it uses less digits than its factorization.

20946226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213753 (or 213746 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20946226 is about 4576.7047097229. The cubic root of 20946226 is about 275.6567268425.

The spelling of 20946226 in words is "twenty million, nine hundred forty-six thousand, two hundred twenty-six".