40223851 has 2 divisors, whose sum is σ = 40223852. Its totient is φ = 40223850.

The previous prime is 40223837. The next prime is 40223857. The reversal of 40223851 is 15832204.

40223851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40223851 - 2⁷ = 40223723 is a prime.

It is equal to p_2446423 and since 40223851 and 2446423 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40223857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111925 + 20111926.

It is an arithmetic number, because the mean of its divisors is an integer number (20111926).

Almost surely, 2^40223851 is an apocalyptic number.

40223851 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223851 is an equidigital number, since it uses as much as digits as its factorization.

40223851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40223851 is about 6342.2276055027. The cubic root of 40223851 is about 342.6319693192.

The spelling of 40223851 in words is "forty million, two hundred twenty-three thousand, eight hundred fifty-one".