40451017 has 2 divisors, whose sum is σ = 40451018. Its totient is φ = 40451016.

The previous prime is 40451009. The next prime is 40451023. The reversal of 40451017 is 71015404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 962361 = 6284^2 + 981^2 .

It is a cyclic number.

It is not a de Polignac number, because 40451017 - 2³ = 40451009 is a prime.

It is not a weakly prime, because it can be changed into another prime (40451077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225508 + 20225509.

It is an arithmetic number, because the mean of its divisors is an integer number (20225509).

Almost surely, 2^40451017 is an apocalyptic number.

It is an amenable number.

40451017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40451017 is an equidigital number, since it uses as much as digits as its factorization.

40451017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 40451017 is about 6360.1113983955. Note that the first 3 decimals coincide. The cubic root of 40451017 is about 343.2757686714.

The spelling of 40451017 in words is "forty million, four hundred fifty-one thousand, seventeen".