368407989 has 12 divisors (see below), whose sum is σ = 532548172. Its totient is φ = 245419200.

The previous prime is 368407987. The next prime is 368408021. The reversal of 368407989 is 989704863.

It can be written as a sum of positive squares in 2 ways, for example, as 273637764 + 94770225 = 16542^2 + 9735^2 .

It is not a de Polignac number, because 368407989 - 2¹ = 368407987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368407987) 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 11 ways as a sum of consecutive naturals, for example, 2392 + ... + 27249.

Almost surely, 2^368407989 is an apocalyptic number.

It is an amenable number.

368407989 is a deficient number, since it is larger than the sum of its proper divisors (164140183).

368407989 is a wasteful number, since it uses less digits than its factorization.

368407989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31028 (or 31025 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 368407989 is about 19193.9570959195. The cubic root of 368407989 is about 716.8743032282.

The spelling of 368407989 in words is "three hundred sixty-eight million, four hundred seven thousand, nine hundred eighty-nine".