406049 has 16 divisors (see below), whose sum is σ = 506880. Its totient is φ = 317520.

The previous prime is 406037. The next prime is 406067. The reversal of 406049 is 940604.

It is not a de Polignac number, because 406049 - 2¹² = 401953 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (406349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5684 + ... + 5754.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2⁴⁰⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

406049 is a deficient number, since it is larger than the sum of its proper divisors (100831).

406049 is a wasteful number, since it uses less digits than its factorization.

406049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 406049 is about 637.2197423181. The cubic root of 406049 is about 74.0501850960.

The spelling of 406049 in words is "four hundred six thousand, forty-nine".