2043400555 has 8 divisors (see below), whose sum is σ = 2802377952. Its totient is φ = 1401188928.

The previous prime is 2043400553. The next prime is 2043400571. The reversal of 2043400555 is 5550043402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2043400555 - 2¹ = 2043400553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043400553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29191402 + ... + 29191471.

It is an arithmetic number, because the mean of its divisors is an integer number (350297244).

Almost surely, 2^2043400555 is an apocalyptic number.

2043400555 is a deficient number, since it is larger than the sum of its proper divisors (758977397).

2043400555 is an equidigital number, since it uses as much as digits as its factorization.

2043400555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58382885.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2043400555 is about 45203.9882643114. The cubic root of 2043400555 is about 1268.9694566308.

Adding to 2043400555 its reverse (5550043402), we get a palindrome (7593443957).

The spelling of 2043400555 in words is "two billion, forty-three million, four hundred thousand, five hundred fifty-five".