40610281 has 2 divisors, whose sum is σ = 40610282. Its totient is φ = 40610280.

The previous prime is 40610261. The next prime is 40610299. The reversal of 40610281 is 18201604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33454656 + 7155625 = 5784^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 40610281 - 2⁷ = 40610153 is a prime.

It is a super-2 number, since 2×40610281² = 3298389845797922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40610221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20305140 + 20305141.

It is an arithmetic number, because the mean of its divisors is an integer number (20305141).

Almost surely, 2^40610281 is an apocalyptic number.

It is an amenable number.

40610281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40610281 is an equidigital number, since it uses as much as digits as its factorization.

40610281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 40610281 is about 6372.6196340281. The cubic root of 40610281 is about 343.7256945459.

Adding to 40610281 its reverse (18201604), we get a palindrome (58811885).

The spelling of 40610281 in words is "forty million, six hundred ten thousand, two hundred eighty-one".