2206400743 has 4 divisors (see below), whose sum is σ = 2336189040. Its totient is φ = 2076612448.

The previous prime is 2206400699. The next prime is 2206400753. The reversal of 2206400743 is 3470046022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3470046022 = 2 ⋅1735023011.

It is a cyclic number.

It is not a de Polignac number, because 2206400743 - 2²⁵ = 2172846311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206400753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64894123 + ... + 64894156.

It is an arithmetic number, because the mean of its divisors is an integer number (584047260).

Almost surely, 2^2206400743 is an apocalyptic number.

2206400743 is a deficient number, since it is larger than the sum of its proper divisors (129788297).

2206400743 is a wasteful number, since it uses less digits than its factorization.

2206400743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129788296.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 2206400743 is about 46972.3401907974. The cubic root of 2206400743 is about 1301.8515515787.

Adding to 2206400743 its reverse (3470046022), we get a palindrome (5676446765).

The spelling of 2206400743 in words is "two billion, two hundred six million, four hundred thousand, seven hundred forty-three".