310428 has 18 divisors (see below), whose sum is σ = 784784. Its totient is φ = 103464.

The previous prime is 310423. The next prime is 310433. The reversal of 310428 is 824013.

It is a happy number.

310428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (310423) and next prime (310433).

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a self number, because there is not a number n which added to its sum of digits gives 310428.

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 310428.

It is not an unprimeable number, because it can be changed into a prime (310423) by changing a digit.

310428 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 in 5 ways as a sum of consecutive naturals, for example, 4276 + ... + 4347.

2³¹⁰⁴²⁸ is an apocalyptic number.

It is an amenable number.

310428 is an abundant number, since it is smaller than the sum of its proper divisors (474356).

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

310428 is a wasteful number, since it uses less digits than its factorization.

310428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633 (or 8628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 310428 is about 557.1606590563. The cubic root of 310428 is about 67.7101270899.

The spelling of 310428 in words is "three hundred ten thousand, four hundred twenty-eight".