40222243 has 8 divisors (see below), whose sum is σ = 41266368. Its totient is φ = 39183144.

The previous prime is 40222223. The next prime is 40222249. The reversal of 40222243 is 34222204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40222243 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 40222243.

It is not an unprimeable number, because it can be changed into a prime (40222249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19080 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (5158296).

Almost surely, 2^40222243 is an apocalyptic number.

40222243 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40222243 is a deficient number, since it is larger than the sum of its proper divisors (1044125).

40222243 is a wasteful number, since it uses less digits than its factorization.

40222243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40222243 is about 6342.1008348969. The cubic root of 40222243 is about 342.6274035410.

Adding to 40222243 its reverse (34222204), we get a palindrome (74444447).

The spelling of 40222243 in words is "forty million, two hundred twenty-two thousand, two hundred forty-three".