2140542220 has 12 divisors (see below), whose sum is σ = 4495138704. Its totient is φ = 856216880.

The previous prime is 2140542211. The next prime is 2140542221. The reversal of 2140542220 is 222450412.

It is a junction number, because it is equal to n+sod(n) for n = 2140542191 and 2140542200.

It is not an unprimeable number, because it can be changed into a prime (2140542221) 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, 53513536 + ... + 53513575.

It is an arithmetic number, because the mean of its divisors is an integer number (374594892).

Almost surely, 2^2140542220 is an apocalyptic number.

2140542220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140542220 is an abundant number, since it is smaller than the sum of its proper divisors (2354596484).

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

2140542220 is a wasteful number, since it uses less digits than its factorization.

2140542220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107027120 (or 107027118 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2140542220 is about 46265.9942074090. The cubic root of 2140542220 is about 1288.7675708190.

Adding to 2140542220 its reverse (222450412), we get a palindrome (2362992632).

The spelling of 2140542220 in words is "two billion, one hundred forty million, five hundred forty-two thousand, two hundred twenty".