234323420234440 has 32 divisors (see below), whose sum is σ = 528738376635000. Its totient is φ = 93460802563584.

The previous prime is 234323420234429. The next prime is 234323420234461. The reversal of 234323420234440 is 44432024323432.

It can be written as a sum of positive squares in 4 ways, for example, as 233420156272836 + 903263961604 = 15278094^2 + 950402^2 .

It is a super-2 number, since 2×234323420234440² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 234323420234393 and 234323420234402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8392658685 + ... + 8392686604.

Almost surely, 2^{234323420234440} is an apocalyptic number.

234323420234440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234323420234440 is an abundant number, since it is smaller than the sum of its proper divisors (294414956400560).

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

234323420234440 is a wasteful number, since it uses less digits than its factorization.

234323420234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16785345649 (or 16785345645 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 40.

Adding to 234323420234440 its reverse (44432024323432), we get a palindrome (278755444557872).

The spelling of 234323420234440 in words is "two hundred thirty-four trillion, three hundred twenty-three billion, four hundred twenty million, two hundred thirty-four thousand, four hundred forty".