311329044 has 36 divisors (see below), whose sum is σ = 847508116. Its totient is φ = 95793408.

The previous prime is 311329043. The next prime is 311329061. The reversal of 311329044 is 440923113.

It can be written as a sum of positive squares in 2 ways, for example, as 121220100 + 190108944 = 11010^2 + 13788^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 311328999 and 311329017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311329043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332149 + ... + 333084.

Almost surely, 2^311329044 is an apocalyptic number.

It is an amenable number.

311329044 is an abundant number, since it is smaller than the sum of its proper divisors (536179072).

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

311329044 is a wasteful number, since it uses less digits than its factorization.

311329044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665256 (or 665251 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 311329044 is about 17644.5188089673. The cubic root of 311329044 is about 677.7557529905.

The spelling of 311329044 in words is "three hundred eleven million, three hundred twenty-nine thousand, forty-four".