2269540643 has 4 divisors (see below), whose sum is σ = 2271283728. Its totient is φ = 2267797560.

The previous prime is 2269540639. The next prime is 2269540657. The reversal of 2269540643 is 3460459622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2269540643 - 2² = 2269540639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2269540643.

It is not an unprimeable number, because it can be changed into a prime (2269540543) 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, 869588 + ... + 872193.

It is an arithmetic number, because the mean of its divisors is an integer number (567820932).

Almost surely, 2^2269540643 is an apocalyptic number.

2269540643 is a deficient number, since it is larger than the sum of its proper divisors (1743085).

2269540643 is a wasteful number, since it uses less digits than its factorization.

2269540643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743084.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 2269540643 is about 47639.6960842531. The cubic root of 2269540643 is about 1314.1531735485.

The spelling of 2269540643 in words is "two billion, two hundred sixty-nine million, five hundred forty thousand, six hundred forty-three".