311434632 has 56 divisors (see below), whose sum is σ = 875525790. Its totient is φ = 103809600.

The previous prime is 311434621. The next prime is 311434639. The reversal of 311434632 is 236434113.

311434632 is a `hidden beast` number, since 311 + 4 + 346 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 296735076 + 14699556 = 17226^2 + 3834^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 311434596 and 311434605.

It is not an unprimeable number, because it can be changed into a prime (311434639) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 20869 + ... + 32532.

Almost surely, 2^311434632 is an apocalyptic number.

It is an amenable number.

311434632 is an abundant number, since it is smaller than the sum of its proper divisors (564091158).

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

311434632 is an equidigital number, since it uses as much as digits as its factorization.

311434632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53425 (or 53406 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 311434632 is about 17647.5106459806. The cubic root of 311434632 is about 677.8323651656.

Adding to 311434632 its reverse (236434113), we get a palindrome (547868745).

The spelling of 311434632 in words is "three hundred eleven million, four hundred thirty-four thousand, six hundred thirty-two".