205870412 has 48 divisors (see below), whose sum is σ = 404756352. Its totient is φ = 90814080.

The previous prime is 205870409. The next prime is 205870417. The reversal of 205870412 is 214078502.

205870412 is nontrivially palindromic in base 16.

It is not an unprimeable number, because it can be changed into a prime (205870417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440603 + ... + 441069.

It is an arithmetic number, because the mean of its divisors is an integer number (8432424).

Almost surely, 2^205870412 is an apocalyptic number.

205870412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

205870412 is a deficient number, since it is larger than the sum of its proper divisors (198885940).

205870412 is a wasteful number, since it uses less digits than its factorization.

205870412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 205870412 is about 14348.1849723232. The cubic root of 205870412 is about 590.4701911185.

The spelling of 205870412 in words is "two hundred five million, eight hundred seventy thousand, four hundred twelve".