40744849 has 2 divisors, whose sum is σ = 40744850. Its totient is φ = 40744848.

The previous prime is 40744831. The next prime is 40744861. The reversal of 40744849 is 94844704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 1306449 = 6280^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 40744849 - 2¹⁹ = 40220561 is a prime.

It is a super-3 number, since 3×40744849³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40744049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372424 + 20372425.

It is an arithmetic number, because the mean of its divisors is an integer number (20372425).

Almost surely, 2^40744849 is an apocalyptic number.

It is an amenable number.

40744849 is a deficient number, since it is larger than the sum of its proper divisors (1).

40744849 is an equidigital number, since it uses as much as digits as its factorization.

40744849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 40744849 is about 6383.1691971935. The cubic root of 40744849 is about 344.1049374510.

The spelling of 40744849 in words is "forty million, seven hundred forty-four thousand, eight hundred forty-nine".