4000400003650 has 24 divisors (see below), whose sum is σ = 7542672013764. Its totient is φ = 1578240000000.

The previous prime is 4000400003627. The next prime is 4000400003651. The reversal of 4000400003650 is 563000040004.

4000400003650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2874167543569 + 1126232460081 = 1695337^2 + 1061241^2 .

It is not an unprimeable number, because it can be changed into a prime (4000400003651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547996351 + ... + 548003650.

Almost surely, 2^{4000400003650} is an apocalyptic number.

4000400003650 is a deficient number, since it is larger than the sum of its proper divisors (3542272010114).

4000400003650 is a wasteful number, since it uses less digits than its factorization.

4000400003650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096000086 (or 1096000081 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 4000400003650 its reverse (563000040004), we get a palindrome (4563400043654).

The spelling of 4000400003650 in words is "four trillion, four hundred million, three thousand, six hundred fifty".