40451771 has 2 divisors, whose sum is σ = 40451772. Its totient is φ = 40451770.

The previous prime is 40451743. The next prime is 40451797. The reversal of 40451771 is 17715404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40451771 - 2¹⁴ = 40435387 is a prime.

It is not a weakly prime, because it can be changed into another prime (40451701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225885 + 20225886.

It is an arithmetic number, because the mean of its divisors is an integer number (20225886).

Almost surely, 2^40451771 is an apocalyptic number.

40451771 is a deficient number, since it is larger than the sum of its proper divisors (1).

40451771 is an equidigital number, since it uses as much as digits as its factorization.

40451771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 40451771 is about 6360.1706738106. The cubic root of 40451771 is about 343.2779015252.

The spelling of 40451771 in words is "forty million, four hundred fifty-one thousand, seven hundred seventy-one".