310143420 has 72 divisors (see below), whose sum is σ = 953696016. Its totient is φ = 81568512.

The previous prime is 310143413. The next prime is 310143433. The reversal of 310143420 is 24341013.

310143420 is a `hidden beast` number, since 310 + 14 + 342 + 0 = 666.

310143420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 310143393 and 310143402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339 + ... + 24941.

It is an arithmetic number, because the mean of its divisors is an integer number (13245778).

Almost surely, 2^310143420 is an apocalyptic number.

310143420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 310143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476848008).

310143420 is an abundant number, since it is smaller than the sum of its proper divisors (643552596).

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

310143420 is a wasteful number, since it uses less digits than its factorization.

310143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23691 (or 23686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 310143420 is about 17610.8892450097. The cubic root of 310143420 is about 676.8943003170.

Adding to 310143420 its reverse (24341013), we get a palindrome (334484433).

The spelling of 310143420 in words is "three hundred ten million, one hundred forty-three thousand, four hundred twenty".