313404280 has 64 divisors (see below), whose sum is σ = 813795840. Its totient is φ = 106399872.

The previous prime is 313404277. The next prime is 313404281. The reversal of 313404280 is 82404313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313404281) 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, 23407 + ... + 34273.

It is an arithmetic number, because the mean of its divisors is an integer number (12715560).

Almost surely, 2^313404280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313404280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406897920).

313404280 is an abundant number, since it is smaller than the sum of its proper divisors (500391560).

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

313404280 is a wasteful number, since it uses less digits than its factorization.

313404280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10988 (or 10984 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 313404280 is about 17703.2279542461. The cubic root of 313404280 is about 679.2583320808.

Adding to 313404280 its reverse (82404313), we get a palindrome (395808593).

The spelling of 313404280 in words is "three hundred thirteen million, four hundred four thousand, two hundred eighty".