2340721257252 has 96 divisors (see below), whose sum is σ = 6396244807680. Its totient is φ = 652253671680.

The previous prime is 2340721257239. The next prime is 2340721257263. The reversal of 2340721257252 is 2527521270432.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 10632883 + ... + 10850789.

It is an arithmetic number, because the mean of its divisors is an integer number (66627550080).

Almost surely, 2^{2340721257252} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2340721257252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3198122403840).

2340721257252 is an abundant number, since it is smaller than the sum of its proper divisors (4055523550428).

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

2340721257252 is a wasteful number, since it uses less digits than its factorization.

2340721257252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221081 (or 221079 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 2340721257252 in words is "two trillion, three hundred forty billion, seven hundred twenty-one million, two hundred fifty-seven thousand, two hundred fifty-two".