2040043455 has 32 divisors (see below), whose sum is σ = 3660043200. Its totient is φ = 1078033536.

The previous prime is 2040043451. The next prime is 2040043457. The reversal of 2040043455 is 5543400402.

2040043455 is a `hidden beast` number, since 204 + 0 + 0 + 4 + 3 + 455 = 666.

It is not a de Polignac number, because 2040043455 - 2² = 2040043451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040043451) 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, 54604 + ... + 84033.

It is an arithmetic number, because the mean of its divisors is an integer number (114376350).

Almost surely, 2^2040043455 is an apocalyptic number.

2040043455 is a deficient number, since it is larger than the sum of its proper divisors (1619999745).

2040043455 is a wasteful number, since it uses less digits than its factorization.

2040043455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138760 (or 138754 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2040043455 is about 45166.8402149187. The cubic root of 2040043455 is about 1268.2741463173.

Adding to 2040043455 its reverse (5543400402), we get a palindrome (7583443857).

The spelling of 2040043455 in words is "two billion, forty million, forty-three thousand, four hundred fifty-five".