373409 has 4 divisors (see below), whose sum is σ = 374916. Its totient is φ = 371904.

The previous prime is 373393. The next prime is 373447. The reversal of 373409 is 904373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 904373 = 109 ⋅8297.

It can be written as a sum of positive squares in 2 ways, for example, as 67600 + 305809 = 260^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 373409 - 2⁴ = 373393 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 373409.

It is not an unprimeable number, because it can be changed into a prime (373459) 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, 284 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (93729).

2³⁷³⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

373409 is a deficient number, since it is larger than the sum of its proper divisors (1507).

373409 is a wasteful number, since it uses less digits than its factorization.

373409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 373409 is about 611.0720088500. The cubic root of 373409 is about 72.0103508781.

The spelling of 373409 in words is "three hundred seventy-three thousand, four hundred nine".