2118562240 has 28 divisors (see below), whose sum is σ = 5044827096. Its totient is φ = 847424768.

The previous prime is 2118562213. The next prime is 2118562241. The reversal of 2118562240 is 422658112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118562241) 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, 3309934 + ... + 3310573.

Almost surely, 2^2118562240 is an apocalyptic number.

2118562240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118562240 is an abundant number, since it is smaller than the sum of its proper divisors (2926264856).

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

2118562240 is an equidigital number, since it uses as much as digits as its factorization.

2118562240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620524 (or 6620514 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2118562240 is about 46027.8420089406. The cubic root of 2118562240 is about 1284.3411844883.

The spelling of 2118562240 in words is "two billion, one hundred eighteen million, five hundred sixty-two thousand, two hundred forty".