234311440040 has 32 divisors (see below), whose sum is σ = 528453036360. Its totient is φ = 93501945600.

The previous prime is 234311440039. The next prime is 234311440073. The reversal of 234311440040 is 40044113432.

It can be written as a sum of positive squares in 4 ways, for example, as 34900965124 + 199410474916 = 186818^2 + 446554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 234311439991 and 234311440009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6940151 + ... + 6973830.

Almost surely, 2^234311440040 is an apocalyptic number.

234311440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234311440040 is an abundant number, since it is smaller than the sum of its proper divisors (294141596320).

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

234311440040 is a wasteful number, since it uses less digits than its factorization.

234311440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914413 (or 13914409 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 234311440040 its reverse (40044113432), we get a palindrome (274355553472).

The spelling of 234311440040 in words is "two hundred thirty-four billion, three hundred eleven million, four hundred forty thousand, forty".