366406 has 4 divisors (see below), whose sum is σ = 549612. Its totient is φ = 183202.

The previous prime is 366397. The next prime is 366409. The reversal of 366406 is 604663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604663 = 113 ⋅5351.

It is a nialpdrome in base 5 and base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366409) by changing a digit.

366406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91600 + ... + 91603.

It is an arithmetic number, because the mean of its divisors is an integer number (137403).

2³⁶⁶⁴⁰⁶ is an apocalyptic number.

366406 is a deficient number, since it is larger than the sum of its proper divisors (183206).

366406 is a wasteful number, since it uses less digits than its factorization.

366406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183205.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 366406 is about 605.3147941361. The cubic root of 366406 is about 71.5573406716.

The spelling of 366406 in words is "three hundred sixty-six thousand, four hundred six".