2140562240 has 28 divisors (see below), whose sum is σ = 5097214596. Its totient is φ = 856224768.

The previous prime is 2140562227. The next prime is 2140562243. The reversal of 2140562240 is 422650412.

It can be written as a sum of positive squares in 2 ways, for example, as 1025536576 + 1115025664 = 32024^2 + 33392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140562243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3344309 + ... + 3344948.

Almost surely, 2^2140562240 is an apocalyptic number.

2140562240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140562240 is an abundant number, since it is smaller than the sum of its proper divisors (2956652356).

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

2140562240 is an equidigital number, since it uses as much as digits as its factorization.

2140562240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689274 (or 6689264 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2140562240 is about 46266.2105645146. The cubic root of 2140562240 is about 1288.7715886556.

The spelling of 2140562240 in words is "two billion, one hundred forty million, five hundred sixty-two thousand, two hundred forty".