34721344140 has 144 divisors (see below), whose sum is σ = 113274427392. Its totient is φ = 7923533184.

The previous prime is 34721344127. The next prime is 34721344169. The reversal of 34721344140 is 4144312743.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1881237 + ... + 1899603.

It is an arithmetic number, because the mean of its divisors is an integer number (786627968).

Almost surely, 2^34721344140 is an apocalyptic number.

34721344140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34721344140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56637213696).

34721344140 is an abundant number, since it is smaller than the sum of its proper divisors (78553083252).

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

34721344140 is a wasteful number, since it uses less digits than its factorization.

34721344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19036 (or 19027 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

Adding to 34721344140 its reverse (4144312743), we get a palindrome (38865656883).

The spelling of 34721344140 in words is "thirty-four billion, seven hundred twenty-one million, three hundred forty-four thousand, one hundred forty".