311826340 has 48 divisors (see below), whose sum is σ = 749411712. Its totient is φ = 106765056.

The previous prime is 311826337. The next prime is 311826349. The reversal of 311826340 is 43628113.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 311826299 and 311826308.

It is not an unprimeable number, because it can be changed into a prime (311826349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 166087 + ... + 167953.

It is an arithmetic number, because the mean of its divisors is an integer number (15612744).

Almost surely, 2^311826340 is an apocalyptic number.

It is an amenable number.

311826340 is an abundant number, since it is smaller than the sum of its proper divisors (437585372).

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

311826340 is a wasteful number, since it uses less digits than its factorization.

311826340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 311826340 is about 17658.6052676875. The cubic root of 311826340 is about 678.1164281162.

The spelling of 311826340 in words is "three hundred eleven million, eight hundred twenty-six thousand, three hundred forty".