406249 has 8 divisors (see below), whose sum is σ = 449280. Its totient is φ = 365376.

The previous prime is 406247. The next prime is 406253. The reversal of 406249 is 942604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406249 - 2¹ = 406247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 910.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁴⁰⁶²⁴⁹ is an apocalyptic number.

It is an amenable number.

406249 is a deficient number, since it is larger than the sum of its proper divisors (43031).

406249 is a wasteful number, since it uses less digits than its factorization.

406249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079.

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

The square root of 406249 is about 637.3766547341. The cubic root of 406249 is about 74.0623409410.

The spelling of 406249 in words is "four hundred six thousand, two hundred forty-nine".