40166873 has 2 divisors, whose sum is σ = 40166874. Its totient is φ = 40166872.

The previous prime is 40166851. The next prime is 40166879. The reversal of 40166873 is 37866104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 19254544 = 4573^2 + 4388^2 .

It is a cyclic number.

It is not a de Polignac number, because 40166873 - 2¹⁴ = 40150489 is a prime.

It is a super-2 number, since 2×40166873² = 3226755373196258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40166879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083436 + 20083437.

It is an arithmetic number, because the mean of its divisors is an integer number (20083437).

Almost surely, 2^40166873 is an apocalyptic number.

It is an amenable number.

40166873 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166873 is an equidigital number, since it uses as much as digits as its factorization.

40166873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40166873 is about 6337.7340587942. The cubic root of 40166873 is about 342.4701108767.

The spelling of 40166873 in words is "forty million, one hundred sixty-six thousand, eight hundred seventy-three".