2351140540 has 72 divisors (see below), whose sum is σ = 5751173232. Its totient is φ = 805029120.

The previous prime is 2351140439. The next prime is 2351140591. The reversal of 2351140540 is 450411532.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1168135 + ... + 1170145.

It is an arithmetic number, because the mean of its divisors is an integer number (79877406).

Almost surely, 2^2351140540 is an apocalyptic number.

2351140540 is a gapful number since it is divisible by the number (20) 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 2351140540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2875586616).

2351140540 is an abundant number, since it is smaller than the sum of its proper divisors (3400032692).

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

2351140540 is a wasteful number, since it uses less digits than its factorization.

2351140540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2351140540 is about 48488.5609190456. The cubic root of 2351140540 is about 1329.7179457289.

The spelling of 2351140540 in words is "two billion, three hundred fifty-one million, one hundred forty thousand, five hundred forty".