40222873 has 2 divisors, whose sum is σ = 40222874. Its totient is φ = 40222872.

The previous prime is 40222859. The next prime is 40222907. The reversal of 40222873 is 37822204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39538944 + 683929 = 6288^2 + 827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40222873 is a prime.

It is not a weakly prime, because it can be changed into another prime (40222823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111436 + 20111437.

It is an arithmetic number, because the mean of its divisors is an integer number (20111437).

Almost surely, 2^40222873 is an apocalyptic number.

It is an amenable number.

40222873 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222873 is an equidigital number, since it uses as much as digits as its factorization.

40222873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 40222873 is about 6342.1505027869. The cubic root of 40222873 is about 342.6291923865.

The spelling of 40222873 in words is "forty million, two hundred twenty-two thousand, eight hundred seventy-three".