1205410404 has 96 divisors (see below), whose sum is σ = 3312368640. Its totient is φ = 337321600.

The previous prime is 1205410403. The next prime is 1205410421. The reversal of 1205410404 is 4040145021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1205410403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81199 + ... + 94889.

It is an arithmetic number, because the mean of its divisors is an integer number (34503840).

Almost surely, 2^1205410404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1205410404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1656184320).

1205410404 is an abundant number, since it is smaller than the sum of its proper divisors (2106958236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205410404 is a wasteful number, since it uses less digits than its factorization.

1205410404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761 (or 13759 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1205410404 is about 34719.0207811223. The cubic root of 1205410404 is about 1064.2532339098.

Adding to 1205410404 its reverse (4040145021), we get a palindrome (5245555425).

The spelling of 1205410404 in words is "one billion, two hundred five million, four hundred ten thousand, four hundred four".