40163933 has 2 divisors, whose sum is σ = 40163934. Its totient is φ = 40163932.

The previous prime is 40163899. The next prime is 40163939. The reversal of 40163933 is 33936104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 196249 = 6322^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 40163933 - 2¹⁶ = 40098397 is a prime.

It is a super-2 number, since 2×40163933² = 3226283028056978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163896 and 40163905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40163939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081966 + 20081967.

It is an arithmetic number, because the mean of its divisors is an integer number (20081967).

Almost surely, 2^40163933 is an apocalyptic number.

It is an amenable number.

40163933 is a deficient number, since it is larger than the sum of its proper divisors (1).

40163933 is an equidigital number, since it uses as much as digits as its factorization.

40163933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 40163933 is about 6337.5021104533. The cubic root of 40163933 is about 342.4617550135.

The spelling of 40163933 in words is "forty million, one hundred sixty-three thousand, nine hundred thirty-three".