2004400312 has 16 divisors (see below), whose sum is σ = 3760353000. Its totient is φ = 1001639520.

The previous prime is 2004400309. The next prime is 2004400331. The reversal of 2004400312 is 2130044002.

It is a super-2 number, since 2×2004400312² = 8035241221491394688, 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, 54687 + ... + 83662.

Almost surely, 2^2004400312 is an apocalyptic number.

It is an amenable number.

2004400312 is a deficient number, since it is larger than the sum of its proper divisors (1755952688).

2004400312 is a wasteful number, since it uses less digits than its factorization.

2004400312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140166 (or 140162 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2004400312 is about 44770.5295032346. The cubic root of 2004400312 is about 1260.8443806875.

Adding to 2004400312 its reverse (2130044002), we get a palindrome (4134444314).

The spelling of 2004400312 in words is "two billion, four million, four hundred thousand, three hundred twelve".