373884409 has 4 divisors (see below), whose sum is σ = 374330880. Its totient is φ = 373437940.

The previous prime is 373884391. The next prime is 373884431. The reversal of 373884409 is 904488373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904488373 = 13781 ⋅65633.

It is a cyclic number.

It is not a de Polignac number, because 373884409 - 2⁵ = 373884377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (373884439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221977 + ... + 223654.

It is an arithmetic number, because the mean of its divisors is an integer number (93582720).

Almost surely, 2^373884409 is an apocalyptic number.

It is an amenable number.

373884409 is a deficient number, since it is larger than the sum of its proper divisors (446471).

373884409 is an equidigital number, since it uses as much as digits as its factorization.

373884409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446470.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 373884409 is about 19336.0908407051. The cubic root of 373884409 is about 720.4089812486.

The spelling of 373884409 in words is "three hundred seventy-three million, eight hundred eighty-four thousand, four hundred nine".