20240205 has 16 divisors (see below), whose sum is σ = 32465664. Its totient is φ = 10767680.

The previous prime is 20240197. The next prime is 20240219. The reversal of 20240205 is 50204202.

It is not a de Polignac number, because 20240205 - 2³ = 20240197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 5452 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (2029104).

Almost surely, 2^20240205 is an apocalyptic number.

It is an amenable number.

20240205 is a deficient number, since it is larger than the sum of its proper divisors (12225459).

20240205 is a wasteful number, since it uses less digits than its factorization.

20240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20240205 is about 4498.9115350271. The cubic root of 20240205 is about 272.5241344390.

Adding to 20240205 its reverse (50204202), we get a palindrome (70444407).

The spelling of 20240205 in words is "twenty million, two hundred forty thousand, two hundred five".