1726406 has 16 divisors (see below), whose sum is σ = 2857680. Its totient is φ = 775680.

The previous prime is 1726379. The next prime is 1726409. The reversal of 1726406 is 6046271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1726409) 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, 1730 + ... + 2538.

It is an arithmetic number, because the mean of its divisors is an integer number (178605).

2^1726406 is an apocalyptic number.

1726406 is a deficient number, since it is larger than the sum of its proper divisors (1131274).

1726406 is a wasteful number, since it uses less digits than its factorization.

1726406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1726406 is about 1313.9276996852. The cubic root of 1726406 is about 119.9630905004.

The spelling of 1726406 in words is "one million, seven hundred twenty-six thousand, four hundred six".