40122243 has 32 divisors (see below), whose sum is σ = 71513600. Its totient is φ = 21718368.

The previous prime is 40122239. The next prime is 40122259. The reversal of 40122243 is 34222104.

40122243 is a `hidden beast` number, since 401 + 22 + 243 = 666.

It is not a de Polignac number, because 40122243 - 2² = 40122239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996 + ... + 9177.

It is an arithmetic number, because the mean of its divisors is an integer number (2234800).

Almost surely, 2^40122243 is an apocalyptic number.

40122243 is a deficient number, since it is larger than the sum of its proper divisors (31391357).

40122243 is a wasteful number, since it uses less digits than its factorization.

40122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11208 (or 11202 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40122243 is about 6334.2121057003. The cubic root of 40122243 is about 342.3432226865.

Adding to 40122243 its reverse (34222104), we get a palindrome (74344347).

The spelling of 40122243 in words is "forty million, one hundred twenty-two thousand, two hundred forty-three".