40336861 has 2 divisors, whose sum is σ = 40336862. Its totient is φ = 40336860.

The previous prime is 40336843. The next prime is 40336897. The reversal of 40336861 is 16863304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33419961 + 6916900 = 5781^2 + 2630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40336861 is a prime.

It is a super-3 number, since 3×40336861³ (a number of 24 digits) contains 333 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40336811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20168430 + 20168431.

It is an arithmetic number, because the mean of its divisors is an integer number (20168431).

Almost surely, 2^40336861 is an apocalyptic number.

It is an amenable number.

40336861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40336861 is an equidigital number, since it uses as much as digits as its factorization.

40336861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40336861 is about 6351.1306867360. The cubic root of 40336861 is about 342.9525472182.

The spelling of 40336861 in words is "forty million, three hundred thirty-six thousand, eight hundred sixty-one".