40769369 has 2 divisors, whose sum is σ = 40769370. Its totient is φ = 40769368.

The previous prime is 40769359. The next prime is 40769401. The reversal of 40769369 is 96396704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 3705625 = 6088^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40769369 is a prime.

It is a super-2 number, since 2×40769369² = 3324282897316322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40769359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20384684 + 20384685.

It is an arithmetic number, because the mean of its divisors is an integer number (20384685).

Almost surely, 2^40769369 is an apocalyptic number.

It is an amenable number.

40769369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40769369 is an equidigital number, since it uses as much as digits as its factorization.

40769369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 40769369 is about 6385.0895843363. The cubic root of 40769369 is about 344.1739503553.

The spelling of 40769369 in words is "forty million, seven hundred sixty-nine thousand, three hundred sixty-nine".