40062861 has 6 divisors (see below), whose sum is σ = 57868590. Its totient is φ = 26708568.

The previous prime is 40062809. The next prime is 40062877. The reversal of 40062861 is 16826004.

It can be written as a sum of positive squares in only one way, i.e., 31472100 + 8590761 = 5610^2 + 2931^2 .

It is not a de Polignac number, because 40062861 - 2⁶ = 40062797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40062661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2225706 + ... + 2225723.

It is an arithmetic number, because the mean of its divisors is an integer number (9644765).

Almost surely, 2^40062861 is an apocalyptic number.

It is an amenable number.

40062861 is a deficient number, since it is larger than the sum of its proper divisors (17805729).

40062861 is a wasteful number, since it uses less digits than its factorization.

40062861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451435 (or 4451432 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40062861 is about 6329.5229678073. The cubic root of 40062861 is about 342.1742469002.

Adding to 40062861 its reverse (16826004), we get a palindrome (56888865).

It can be divided in two parts, 400628 and 61, that added together give a square (400689 = 633²).

The spelling of 40062861 in words is "forty million, sixty-two thousand, eight hundred sixty-one".