368621905 has 8 divisors (see below), whose sum is σ = 443944872. Its totient is φ = 293831808.

The previous prime is 368621879. The next prime is 368621921. The reversal of 368621905 is 509126863.

It can be written as a sum of positive squares in 4 ways, for example, as 20277009 + 348344896 = 4503^2 + 18664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 368621905 - 2⁷ = 368621777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131692 + ... + 134461.

It is an arithmetic number, because the mean of its divisors is an integer number (55493109).

Almost surely, 2^368621905 is an apocalyptic number.

It is an amenable number.

368621905 is a deficient number, since it is larger than the sum of its proper divisors (75322967).

368621905 is a wasteful number, since it uses less digits than its factorization.

368621905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266435.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 368621905 is about 19199.5287702589. The cubic root of 368621905 is about 717.0130273389.

The spelling of 368621905 in words is "three hundred sixty-eight million, six hundred twenty-one thousand, nine hundred five".