2140494540 has 48 divisors (see below), whose sum is σ = 6253970688. Its totient is φ = 545980864.

The previous prime is 2140494529. The next prime is 2140494557. The reversal of 2140494540 is 454940412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774162 + ... + 776921.

It is an arithmetic number, because the mean of its divisors is an integer number (130291056).

Almost surely, 2^2140494540 is an apocalyptic number.

2140494540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140494540 is an abundant number, since it is smaller than the sum of its proper divisors (4113476148).

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

2140494540 is a wasteful number, since it uses less digits than its factorization.

2140494540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551118 (or 1551116 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 2140494540 is about 46265.4789232750. The cubic root of 2140494540 is about 1288.7580017647.

The spelling of 2140494540 in words is "two billion, one hundred forty million, four hundred ninety-four thousand, five hundred forty".