310421 has 4 divisors (see below), whose sum is σ = 316332. Its totient is φ = 304512.

The previous prime is 310397. The next prime is 310423. The reversal of 310421 is 124013.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 46225 = 514^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 310421 - 2⁶ = 310357 is a prime.

It is a super-2 number, since 2×310421² = 192722394482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2876 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (79083).

2³¹⁰⁴²¹ is an apocalyptic number.

It is an amenable number.

310421 is a deficient number, since it is larger than the sum of its proper divisors (5911).

310421 is an equidigital number, since it uses as much as digits as its factorization.

310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 310421 is about 557.1543771703. The cubic root of 310421 is about 67.7096181426.

Adding to 310421 its reverse (124013), we get a palindrome (434434).

It can be divided in two parts, 3104 and 21, that added together give a 5-th power (3125 = 5⁵).

The spelling of 310421 in words is "three hundred ten thousand, four hundred twenty-one", and thus it is an iban number.