246409 has 4 divisors (see below), whose sum is σ = 247680. Its totient is φ = 245140.

The previous prime is 246403. The next prime is 246439. The reversal of 246409 is 904642.

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.

It is a cyclic number.

It is not a de Polignac number, because 246409 - 2⁹ = 245897 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (246403) 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, 277 + ... + 754.

It is an arithmetic number, because the mean of its divisors is an integer number (61920).

2²⁴⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

246409 is a deficient number, since it is larger than the sum of its proper divisors (1271).

246409 is a wasteful number, since it uses less digits than its factorization.

246409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 246409 is about 496.3960112652. The cubic root of 246409 is about 62.6929715783.

It can be divided in two parts, 24640 and 9, that added together give a square (24649 = 157²).

The spelling of 246409 in words is "two hundred forty-six thousand, four hundred nine".