313440420 has 48 divisors (see below), whose sum is σ = 878472000. Its totient is φ = 83504256.

The previous prime is 313440403. The next prime is 313440427. The reversal of 313440420 is 24044313.

It is not an unprimeable number, because it can be changed into a prime (313440427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87831 + ... + 91329.

It is an arithmetic number, because the mean of its divisors is an integer number (18301500).

Almost surely, 2^313440420 is an apocalyptic number.

313440420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313440420 is an abundant number, since it is smaller than the sum of its proper divisors (565031580).

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

313440420 is a wasteful number, since it uses less digits than its factorization.

313440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004 (or 5002 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 313440420 is about 17704.2486426281. The cubic root of 313440420 is about 679.2844404805.

Adding to 313440420 its reverse (24044313), we get a palindrome (337484733).

The spelling of 313440420 in words is "three hundred thirteen million, four hundred forty thousand, four hundred twenty".