2112144040 has 32 divisors (see below), whose sum is σ = 4817431080. Its totient is φ = 833283072.

The previous prime is 2112144019. The next prime is 2112144053. The reversal of 2112144040 is 404412112.

It can be written as a sum of positive squares in 4 ways, for example, as 1424760516 + 687383524 = 37746^2 + 26218^2 .

It is a super-2 number, since 2×2112144040² = 8922304891415043200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112143999 and 2112144017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358749 + ... + 364588.

Almost surely, 2^2112144040 is an apocalyptic number.

2112144040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112144040 is an abundant number, since it is smaller than the sum of its proper divisors (2705287040).

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

2112144040 is a wasteful number, since it uses less digits than its factorization.

2112144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723421 (or 723417 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2112144040 is about 45958.0682796829. The cubic root of 2112144040 is about 1283.0428988381.

Adding to 2112144040 its reverse (404412112), we get a palindrome (2516556152).

The spelling of 2112144040 in words is "two billion, one hundred twelve million, one hundred forty-four thousand, forty".