311240034 has 24 divisors (see below), whose sum is σ = 770689920. Its totient is φ = 88925688.

The previous prime is 311240021. The next prime is 311240051. The reversal of 311240034 is 430042113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 311239989 and 311240016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1234954 + ... + 1235205.

It is an arithmetic number, because the mean of its divisors is an integer number (32112080).

Almost surely, 2^311240034 is an apocalyptic number.

311240034 is an abundant number, since it is smaller than the sum of its proper divisors (459449886).

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

311240034 is a wasteful number, since it uses less digits than its factorization.

311240034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470174 (or 2470171 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 311240034 is about 17641.9963156101. The cubic root of 311240034 is about 677.6911559659.

Adding to 311240034 its reverse (430042113), we get a palindrome (741282147).

The spelling of 311240034 in words is "three hundred eleven million, two hundred forty thousand, thirty-four".