40016061 has 12 divisors (see below), whose sum is σ = 58749340. Its totient is φ = 26239680.

The previous prime is 40016051. The next prime is 40016077. The reversal of 40016061 is 16061004.

40016061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 22325625 = 4206^2 + 4725^2 .

It is not a de Polignac number, because 40016061 - 2¹⁴ = 39999677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40016051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35896 + ... + 36993.

Almost surely, 2^40016061 is an apocalyptic number.

It is an amenable number.

40016061 is a deficient number, since it is larger than the sum of its proper divisors (18733279).

40016061 is a wasteful number, since it uses less digits than its factorization.

40016061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72956 (or 72953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40016061 is about 6325.8249264424. The cubic root of 40016061 is about 342.0409564165.

Adding to 40016061 its reverse (16061004), we get a palindrome (56077065).

It can be divided in two parts, 400 and 16061, that added together give a palindrome (16461).

The spelling of 40016061 in words is "forty million, sixteen thousand, sixty-one".