40544437 has 2 divisors, whose sum is σ = 40544438. Its totient is φ = 40544436.

The previous prime is 40544431. The next prime is 40544467. The reversal of 40544437 is 73444504.

40544437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39828721 + 715716 = 6311^2 + 846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40544437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40544399 and 40544408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40544431) 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 as a sum of consecutive naturals, namely, 20272218 + 20272219.

It is an arithmetic number, because the mean of its divisors is an integer number (20272219).

Almost surely, 2^40544437 is an apocalyptic number.

It is an amenable number.

40544437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544437 is an equidigital number, since it uses as much as digits as its factorization.

40544437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 40544437 is about 6367.4513739800. The cubic root of 40544437 is about 343.5398260350.

The spelling of 40544437 in words is "forty million, five hundred forty-four thousand, four hundred thirty-seven".