303406 has 4 divisors (see below), whose sum is σ = 455112. Its totient is φ = 151702.

The previous prime is 303389. The next prime is 303409. The reversal of 303406 is 604303.

It is a happy number.

303406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 303406.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 303406.

It is not an unprimeable number, because it can be changed into a prime (303409) by changing a digit.

303406 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, 75850 + ... + 75853.

It is an arithmetic number, because the mean of its divisors is an integer number (113778).

2³⁰³⁴⁰⁶ is an apocalyptic number.

303406 is a deficient number, since it is larger than the sum of its proper divisors (151706).

303406 is a wasteful number, since it uses less digits than its factorization.

303406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151705.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 303406 is about 550.8230205792. The cubic root of 303406 is about 67.1956854278.

Adding to 303406 its reverse (604303), we get a palindrome (907709).

The spelling of 303406 in words is "three hundred three thousand, four hundred six".