40748969 has 2 divisors, whose sum is σ = 40748970. Its totient is φ = 40748968.

The previous prime is 40748941. The next prime is 40748987. The reversal of 40748969 is 96984704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34810000 + 5938969 = 5900^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 40748969 - 2⁸ = 40748713 is a prime.

It is a super-2 number, since 2×40748969² = 3320956949125922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40748909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20374484 + 20374485.

It is an arithmetic number, because the mean of its divisors is an integer number (20374485).

Almost surely, 2^40748969 is an apocalyptic number.

It is an amenable number.

40748969 is a deficient number, since it is larger than the sum of its proper divisors (1).

40748969 is an equidigital number, since it uses as much as digits as its factorization.

40748969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 40748969 is about 6383.4919127387. The cubic root of 40748969 is about 344.1165353551.

The spelling of 40748969 in words is "forty million, seven hundred forty-eight thousand, nine hundred sixty-nine".