40186733 has 2 divisors, whose sum is σ = 40186734. Its totient is φ = 40186732.

The previous prime is 40186711. The next prime is 40186787. The reversal of 40186733 is 33768104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36808489 + 3378244 = 6067^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 40186733 - 2⁶ = 40186669 is a prime.

It is a super-2 number, since 2×40186733² = 3229947018426578, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40186733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40186703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093366 + 20093367.

It is an arithmetic number, because the mean of its divisors is an integer number (20093367).

Almost surely, 2^40186733 is an apocalyptic number.

It is an amenable number.

40186733 is a deficient number, since it is larger than the sum of its proper divisors (1).

40186733 is an equidigital number, since it uses as much as digits as its factorization.

40186733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40186733 is about 6339.3006712097. The cubic root of 40186733 is about 342.5265449084.

The spelling of 40186733 in words is "forty million, one hundred eighty-six thousand, seven hundred thirty-three".