34321232440 has 64 divisors (see below), whose sum is σ = 85429624320. Its totient is φ = 12304656000.

The previous prime is 34321232423. The next prime is 34321232443. The reversal of 34321232440 is 4423212343.

It is a junction number, because it is equal to n+sod(n) for n = 34321232399 and 34321232408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34321232443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518076 + ... + 580555.

It is an arithmetic number, because the mean of its divisors is an integer number (1334837880).

Almost surely, 2^34321232440 is an apocalyptic number.

It is an amenable number.

34321232440 is an abundant number, since it is smaller than the sum of its proper divisors (51108391880).

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

34321232440 is a wasteful number, since it uses less digits than its factorization.

34321232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098724 (or 1098720 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 34321232440 its reverse (4423212343), we get a palindrome (38744444783).

The spelling of 34321232440 in words is "thirty-four billion, three hundred twenty-one million, two hundred thirty-two thousand, four hundred forty".