310243421 has 16 divisors (see below), whose sum is σ = 342889200. Its totient is φ = 279379968.

The previous prime is 310243411. The next prime is 310243429. The reversal of 310243421 is 124342013.

It can be written as a sum of positive squares in 8 ways, for example, as 34351321 + 275892100 = 5861^2 + 16610^2 .

It is not a de Polignac number, because 310243421 - 2²⁶ = 243134557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310243393 and 310243402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310243429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52925 + ... + 58493.

It is an arithmetic number, because the mean of its divisors is an integer number (21430575).

Almost surely, 2^310243421 is an apocalyptic number.

It is an amenable number.

310243421 is a deficient number, since it is larger than the sum of its proper divisors (32645779).

310243421 is a wasteful number, since it uses less digits than its factorization.

310243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 310243421 is about 17613.7281970627. The cubic root of 310243421 is about 676.9670439023.

Adding to 310243421 its reverse (124342013), we get a palindrome (434585434).

The spelling of 310243421 in words is "three hundred ten million, two hundred forty-three thousand, four hundred twenty-one".