40744237 has 2 divisors, whose sum is σ = 40744238. Its totient is φ = 40744236.

The previous prime is 40744229. The next prime is 40744307. The reversal of 40744237 is 73244704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25110121 + 15634116 = 5011^2 + 3954^2 .

It is a cyclic number.

It is not a de Polignac number, because 40744237 - 2³ = 40744229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40744199 and 40744208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40748237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372118 + 20372119.

It is an arithmetic number, because the mean of its divisors is an integer number (20372119).

Almost surely, 2^40744237 is an apocalyptic number.

It is an amenable number.

40744237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40744237 is an equidigital number, since it uses as much as digits as its factorization.

40744237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 40744237 is about 6383.1212584440. The cubic root of 40744237 is about 344.1032145888.

It can be divided in two parts, 407 and 44237, that added together give a palindrome (44644).

The spelling of 40744237 in words is "forty million, seven hundred forty-four thousand, two hundred thirty-seven".