2140440212 has 12 divisors (see below), whose sum is σ = 3942916320. Its totient is φ = 1013892696.

The previous prime is 2140440209. The next prime is 2140440221. The reversal of 2140440212 is 2120440412.

It is a super-2 number, since 2×2140440212² = 9162968602293209888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14081768 + ... + 14081919.

It is an arithmetic number, because the mean of its divisors is an integer number (328576360).

Almost surely, 2^2140440212 is an apocalyptic number.

It is an amenable number.

2140440212 is a deficient number, since it is larger than the sum of its proper divisors (1802476108).

2140440212 is a wasteful number, since it uses less digits than its factorization.

2140440212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28163710 (or 28163708 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2140440212 is about 46264.8917863211. The cubic root of 2140440212 is about 1288.7470983285.

Adding to 2140440212 its reverse (2120440412), we get a palindrome (4260880624).

It can be divided in two parts, 21404 and 40212, that added together give a palindrome (61616).

The spelling of 2140440212 in words is "two billion, one hundred forty million, four hundred forty thousand, two hundred twelve".