376284409 has 4 divisors (see below), whose sum is σ = 398418804. Its totient is φ = 354150016.

The previous prime is 376284407. The next prime is 376284421. The reversal of 376284409 is 904482673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 276224400 + 100060009 = 16620^2 + 10003^2 .

It is a cyclic number.

It is not a de Polignac number, because 376284409 - 2¹ = 376284407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (376284407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11067172 + ... + 11067205.

It is an arithmetic number, because the mean of its divisors is an integer number (99604701).

Almost surely, 2^376284409 is an apocalyptic number.

It is an amenable number.

376284409 is a deficient number, since it is larger than the sum of its proper divisors (22134395).

376284409 is a wasteful number, since it uses less digits than its factorization.

376284409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22134394.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 376284409 is about 19398.0516805168. The cubic root of 376284409 is about 721.9471528961.

The spelling of 376284409 in words is "three hundred seventy-six million, two hundred eighty-four thousand, four hundred nine".