1204400312 has 16 divisors (see below), whose sum is σ = 2258955000. Its totient is φ = 602012320.

The previous prime is 1204400273. The next prime is 1204400339. The reversal of 1204400312 is 2130044021.

It is a super-2 number, since 2×1204400312² = 2901160223091394688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5939 + ... + 49437.

Almost surely, 2^1204400312 is an apocalyptic number.

It is an amenable number.

1204400312 is a deficient number, since it is larger than the sum of its proper divisors (1054554688).

1204400312 is a wasteful number, since it uses less digits than its factorization.

1204400312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46966 (or 46962 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1204400312 is about 34704.4710664202. The cubic root of 1204400312 is about 1063.9558817707.

Adding to 1204400312 its reverse (2130044021), we get a palindrome (3334444333).

The spelling of 1204400312 in words is "one billion, two hundred four million, four hundred thousand, three hundred twelve".