40222143 has 16 divisors (see below), whose sum is σ = 64172640. Its totient is φ = 24751872.

The previous prime is 40222141. The next prime is 40222163. The reversal of 40222143 is 34122204.

40222143 is a `hidden beast` number, since 402 + 221 + 43 = 666.

It is not a de Polignac number, because 40222143 - 2¹ = 40222141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56946 + ... + 57647.

It is an arithmetic number, because the mean of its divisors is an integer number (4010790).

Almost surely, 2^40222143 is an apocalyptic number.

40222143 is a deficient number, since it is larger than the sum of its proper divisors (23950497).

40222143 is a wasteful number, since it uses less digits than its factorization.

40222143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114615 (or 114609 counting only the distinct ones).

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

The square root of 40222143 is about 6342.0929510691. The cubic root of 40222143 is about 342.6271195956.

Adding to 40222143 its reverse (34122204), we get a palindrome (74344347).

The spelling of 40222143 in words is "forty million, two hundred twenty-two thousand, one hundred forty-three".