4040400309312 has 56 divisors (see below), whose sum is σ = 10690510451296. Its totient is φ = 1346764243968.

The previous prime is 4040400309301. The next prime is 4040400309329. The reversal of 4040400309312 is 2139030040404.

It is a self number, because there is not a number n which added to its sum of digits gives 4040400309312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7512828 + ... + 8032644.

Almost surely, 2^{4040400309312} is an apocalyptic number.

It is an amenable number.

4040400309312 is an abundant number, since it is smaller than the sum of its proper divisors (6650110141984).

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

4040400309312 is a wasteful number, since it uses less digits than its factorization.

4040400309312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560315 (or 560305 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 4040400309312 its reverse (2139030040404), we get a palindrome (6179430349716).

The spelling of 4040400309312 in words is "four trillion, forty billion, four hundred million, three hundred nine thousand, three hundred twelve".