2140785264 has 80 divisors (see below), whose sum is σ = 5637139200. Its totient is φ = 699875328.

The previous prime is 2140785239. The next prime is 2140785313. The reversal of 2140785264 is 4625870412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177317 + ... + 2178299.

It is an arithmetic number, because the mean of its divisors is an integer number (70464240).

Almost surely, 2^2140785264 is an apocalyptic number.

2140785264 is a gapful number since it is divisible by the number (24) 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 2140785264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2818569600).

2140785264 is an abundant number, since it is smaller than the sum of its proper divisors (3496353936).

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

2140785264 is a wasteful number, since it uses less digits than its factorization.

2140785264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2140785264 is about 46268.6207272272. The cubic root of 2140785264 is about 1288.8163459017.

The spelling of 2140785264 in words is "two billion, one hundred forty million, seven hundred eighty-five thousand, two hundred sixty-four".