368807409 has 6 divisors (see below), whose sum is σ = 532721826. Its totient is φ = 245871600.

The previous prime is 368807393. The next prime is 368807447. The reversal of 368807409 is 904708863.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 340291809 + 28515600 = 18447^2 + 5340^2 .

It is not a de Polignac number, because 368807409 - 2⁴ = 368807393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (368807489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20489292 + ... + 20489309.

It is an arithmetic number, because the mean of its divisors is an integer number (88786971).

Almost surely, 2^368807409 is an apocalyptic number.

It is an amenable number.

368807409 is a deficient number, since it is larger than the sum of its proper divisors (163914417).

368807409 is a wasteful number, since it uses less digits than its factorization.

368807409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40978607 (or 40978604 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 368807409 is about 19204.3591145344. The cubic root of 368807409 is about 717.1332828794.

The spelling of 368807409 in words is "three hundred sixty-eight million, eight hundred seven thousand, four hundred nine".