2112430040 has 128 divisors (see below), whose sum is σ = 5678069760. Its totient is φ = 692181504.

The previous prime is 2112430037. The next prime is 2112430043. The reversal of 2112430040 is 400342112.

It is an interprime number because it is at equal distance from previous prime (2112430037) and next prime (2112430043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112430043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564014 + ... + 567746.

It is an arithmetic number, because the mean of its divisors is an integer number (44359920).

Almost surely, 2^2112430040 is an apocalyptic number.

2112430040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112430040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839034880).

2112430040 is an abundant number, since it is smaller than the sum of its proper divisors (3565639720).

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

2112430040 is a wasteful number, since it uses less digits than its factorization.

2112430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3837 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2112430040 is about 45961.1797063565. The cubic root of 2112430040 is about 1283.1008074057.

Adding to 2112430040 its reverse (400342112), we get a palindrome (2512772152).

The spelling of 2112430040 in words is "two billion, one hundred twelve million, four hundred thirty thousand, forty".