40028394223 has 2 divisors, whose sum is σ = 40028394224. Its totient is φ = 40028394222.

The previous prime is 40028394199. The next prime is 40028394233. The reversal of 40028394223 is 32249382004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40028394223 - 2¹⁷ = 40028263151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40028394233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20014197111 + 20014197112.

It is an arithmetic number, because the mean of its divisors is an integer number (20014197112).

Almost surely, 2^40028394223 is an apocalyptic number.

40028394223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40028394223 is an equidigital number, since it uses as much as digits as its factorization.

40028394223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 40028394223 in words is "forty billion, twenty-eight million, three hundred ninety-four thousand, two hundred twenty-three".