20246205 has 64 divisors (see below), whose sum is σ = 39283200. Its totient is φ = 8709120.

The previous prime is 20246197. The next prime is 20246221. The reversal of 20246205 is 50264202.

It is not a de Polignac number, because 20246205 - 2³ = 20246197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185691 + ... + 185799.

It is an arithmetic number, because the mean of its divisors is an integer number (613800).

Almost surely, 2^20246205 is an apocalyptic number.

It is an amenable number.

20246205 is a deficient number, since it is larger than the sum of its proper divisors (19036995).

20246205 is a wasteful number, since it uses less digits than its factorization.

20246205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20246205 is about 4499.5783135756. The cubic root of 20246205 is about 272.5510607681.

The spelling of 20246205 in words is "twenty million, two hundred forty-six thousand, two hundred five".