311444042 has 32 divisors (see below), whose sum is σ = 593531904. Its totient is φ = 119232000.

The previous prime is 311444041. The next prime is 311444083. The reversal of 311444042 is 240444113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311443999 and 311444017.

It is not an unprimeable number, because it can be changed into a prime (311444041) 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, 21959 + ... + 33242.

It is an arithmetic number, because the mean of its divisors is an integer number (18547872).

Almost surely, 2^311444042 is an apocalyptic number.

311444042 is a deficient number, since it is larger than the sum of its proper divisors (282087862).

311444042 is a wasteful number, since it uses less digits than its factorization.

311444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 311444042 is about 17647.7772538073. Note that the first 3 decimals coincide. The cubic root of 311444042 is about 677.8391920004.

Adding to 311444042 its reverse (240444113), we get a palindrome (551888155).

The spelling of 311444042 in words is "three hundred eleven million, four hundred forty-four thousand, forty-two".