311041340 has 12 divisors (see below), whose sum is σ = 653186856. Its totient is φ = 124416528.

The previous prime is 311041337. The next prime is 311041373. The reversal of 311041340 is 43140113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7776014 + ... + 7776053.

It is an arithmetic number, because the mean of its divisors is an integer number (54432238).

Almost surely, 2^311041340 is an apocalyptic number.

It is an amenable number.

311041340 is an abundant number, since it is smaller than the sum of its proper divisors (342145516).

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

311041340 is a wasteful number, since it uses less digits than its factorization.

311041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15552076 (or 15552074 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 311041340 is about 17636.3641377694. The cubic root of 311041340 is about 677.5469137777.

Adding to 311041340 its reverse (43140113), we get a palindrome (354181453).

The spelling of 311041340 in words is "three hundred eleven million, forty-one thousand, three hundred forty".