303426 has 20 divisors (see below), whose sum is σ = 680262. Its totient is φ = 101088.

The previous prime is 303421. The next prime is 303431. The reversal of 303426 is 624303.

It is an interprime number because it is at equal distance from previous prime (303421) and next prime (303431).

It can be written as a sum of positive squares in only one way, i.e., 301401 + 2025 = 549^2 + 45^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 3² + 0 + 4⁹ + 3⁶ + 2¹⁵ + 6⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 303399 and 303408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303421) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 775 + ... + 1098.

2³⁰³⁴²⁶ is an apocalyptic number.

303426 is an abundant number, since it is smaller than the sum of its proper divisors (376836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

303426 is a wasteful number, since it uses less digits than its factorization.

303426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303426 is about 550.8411749316. The cubic root of 303426 is about 67.1971618699.

Adding to 303426 its reverse (624303), we get a palindrome (927729).

It can be divided in two parts, 303 and 426, that added together give a 6-th power (729 = 3⁶).

The spelling of 303426 in words is "three hundred three thousand, four hundred twenty-six".