40016461 has 2 divisors, whose sum is σ = 40016462. Its totient is φ = 40016460.

The previous prime is 40016441. The next prime is 40016497. The reversal of 40016461 is 16461004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 4435236 = 5965^2 + 2106^2 .

It is a cyclic number.

It is not a de Polignac number, because 40016461 - 2⁵ = 40016429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40016441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20008230 + 20008231.

It is an arithmetic number, because the mean of its divisors is an integer number (20008231).

Almost surely, 2^40016461 is an apocalyptic number.

It is an amenable number.

40016461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40016461 is an equidigital number, since it uses as much as digits as its factorization.

40016461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40016461 is about 6325.8565427932. The cubic root of 40016461 is about 342.0420960916.

Adding to 40016461 its reverse (16461004), we get a palindrome (56477465).

It can be divided in two parts, 400 and 16461, that added together give a palindrome (16861).

The spelling of 40016461 in words is "forty million, sixteen thousand, four hundred sixty-one".