409222943 has 4 divisors (see below), whose sum is σ = 410275320. Its totient is φ = 408170568.

The previous prime is 409222897. The next prime is 409222949. The reversal of 409222943 is 349222904.

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 409222943 - 2²⁸ = 140787487 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 (409222949) 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, 525605 + ... + 526382.

It is an arithmetic number, because the mean of its divisors is an integer number (102568830).

Almost surely, 2^409222943 is an apocalyptic number.

409222943 is a deficient number, since it is larger than the sum of its proper divisors (1052377).

409222943 is a wasteful number, since it uses less digits than its factorization.

409222943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052376.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 409222943 is about 20229.2595761684. The cubic root of 409222943 is about 742.4262601402.

The spelling of 409222943 in words is "four hundred nine million, two hundred twenty-two thousand, nine hundred forty-three".