204120412 has 12 divisors (see below), whose sum is σ = 363265560. Its totient is φ = 100330256.

The previous prime is 204120409. The next prime is 204120419. The reversal of 204120412 is 214021402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204120419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432223 + ... + 432694.

It is an arithmetic number, because the mean of its divisors is an integer number (30272130).

Almost surely, 2^204120412 is an apocalyptic number.

It is an amenable number.

204120412 is a deficient number, since it is larger than the sum of its proper divisors (159145148).

204120412 is a wasteful number, since it uses less digits than its factorization.

204120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864980 (or 864978 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 204120412 is about 14287.0714983862. The cubic root of 204120412 is about 588.7923319769.

Adding to 204120412 its reverse (214021402), we get a palindrome (418141814).

The spelling of 204120412 in words is "two hundred four million, one hundred twenty thousand, four hundred twelve".