234305034440 has 32 divisors (see below), whose sum is σ = 531851703480. Its totient is φ = 92892613632.

The previous prime is 234305034373. The next prime is 234305034451. The reversal of 234305034440 is 44430503432.

It can be written as a sum of positive squares in 4 ways, for example, as 68172165604 + 166132868836 = 261098^2 + 407594^2 .

It is a super-2 number, since 2×234305034440² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234305034397 and 234305034406.

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, 25914179 + ... + 25923218.

Almost surely, 2^234305034440 is an apocalyptic number.

234305034440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234305034440 is an abundant number, since it is smaller than the sum of its proper divisors (297546669040).

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

234305034440 is a wasteful number, since it uses less digits than its factorization.

234305034440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51837521 (or 51837517 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 234305034440 its reverse (44430503432), we get a palindrome (278735537872).

The spelling of 234305034440 in words is "two hundred thirty-four billion, three hundred five million, thirty-four thousand, four hundred forty".