368540921 has 16 divisors (see below), whose sum is σ = 426144000. Its totient is φ = 312199488.

The previous prime is 368540899. The next prime is 368540951. The reversal of 368540921 is 129045863.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 368540921 - 2¹⁴ = 368524537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (368540951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238076 + ... + 239618.

It is an arithmetic number, because the mean of its divisors is an integer number (26634000).

Almost surely, 2^368540921 is an apocalyptic number.

It is an amenable number.

368540921 is a deficient number, since it is larger than the sum of its proper divisors (57603079).

368540921 is a wasteful number, since it uses less digits than its factorization.

368540921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 368540921 is about 19197.4196443168. The cubic root of 368540921 is about 716.9605156867.

The spelling of 368540921 in words is "three hundred sixty-eight million, five hundred forty thousand, nine hundred twenty-one".