2185740354 has 96 divisors (see below), whose sum is σ = 5667952320. Its totient is φ = 556803072.

The previous prime is 2185740329. The next prime is 2185740383. The reversal of 2185740354 is 4530475812.

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, 83454 + ... + 106470.

It is an arithmetic number, because the mean of its divisors is an integer number (59041170).

Almost surely, 2^2185740354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2185740354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2833976160).

2185740354 is an abundant number, since it is smaller than the sum of its proper divisors (3482211966).

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

2185740354 is a wasteful number, since it uses less digits than its factorization.

2185740354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23072 (or 23065 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 2185740354 is about 46751.9021431214. The cubic root of 2185740354 is about 1297.7753577476.

The spelling of 2185740354 in words is "two billion, one hundred eighty-five million, seven hundred forty thousand, three hundred fifty-four".